Home / 103,662,237,460.15-155,493,356,190.21-29,132,220,888.78

Finding the Fourth Proportional to 103,662,237,460.15, 155,493,356,190.21 and 29,132,220,888.78

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Solution

The fourth proportional to 103,662,237,460.15, 155,493,356,190.21 and 29,132,220,888.78 is: 43,698,331,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662,237,460.15 : 155,493,356,190.21 = 29,132,220,888.78 : x
  2. Step 2: Convert to fraction form
    103,662,237,460.15/155,493,356,190.21 = 29,132,220,888.78/x
  3. Step 3: Cross multiply
    103,662,237,460.15x = 155,493,356,190.21 × 29,132,220,888.78
  4. Step 4: Simplify right side
    103,662,237,460.15x = 4,529,866,799,270,944,309,248
  5. Step 5: Solve for x
    x = 4,529,866,799,270,944,309,248/103,662,237,460.15
  6. Step 6: Final answer
    x = 43,698,331,333.17

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Half scale
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Double scale
Find fourth proportional to 103,662,237,461.15, 155,493,356,191.71 and 29,132,220,889.78
Similar ratio
Find fourth proportional to 155,493,356,190.23, 233,240,034,285.32 and 43,698,331,333.17
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.