Home / 103,170,888.74-142,375,821.63-56,760,146.21

Finding the Fourth Proportional to 103,170,888.74, 142,375,821.63 and 56,760,146.21

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Solution

The fourth proportional to 103,170,888.74, 142,375,821.63 and 56,760,146.21 is: 78,328,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,170,888.74 : 142,375,821.63 = 56,760,146.21 : x
  2. Step 2: Convert to fraction form
    103,170,888.74/142,375,821.63 = 56,760,146.21/x
  3. Step 3: Cross multiply
    103,170,888.74x = 142,375,821.63 × 56,760,146.21
  4. Step 4: Simplify right side
    103,170,888.74x = 8,081,272,452,487,680
  5. Step 5: Solve for x
    x = 8,081,272,452,487,680/103,170,888.74
  6. Step 6: Final answer
    x = 78,328,999.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.