Home / 71,320,501.20-106,980,751.80-66,502,102.80

Finding the Fourth Proportional to 71,320,501.20, 106,980,751.80 and 66,502,102.80

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Solution

The fourth proportional to 71,320,501.20, 106,980,751.80 and 66,502,102.80 is: 99,753,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,320,501.20 : 106,980,751.80 = 66,502,102.80 : x
  2. Step 2: Convert to fraction form
    71,320,501.20/106,980,751.80 = 66,502,102.80/x
  3. Step 3: Cross multiply
    71,320,501.20x = 106,980,751.80 × 66,502,102.80
  4. Step 4: Simplify right side
    71,320,501.20x = 7,114,444,953,824,885
  5. Step 5: Solve for x
    x = 7,114,444,953,824,885/71,320,501.20
  6. Step 6: Final answer
    x = 99,753,154.20

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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.