Home / 65,414,142.80-98,121,214.20-39,841,989.20

Finding the Fourth Proportional to 65,414,142.80, 98,121,214.20 and 39,841,989.20

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Solution

The fourth proportional to 65,414,142.80, 98,121,214.20 and 39,841,989.20 is: 59,762,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,414,142.80 : 98,121,214.20 = 39,841,989.20 : x
  2. Step 2: Convert to fraction form
    65,414,142.80/98,121,214.20 = 39,841,989.20/x
  3. Step 3: Cross multiply
    65,414,142.80x = 98,121,214.20 × 39,841,989.20
  4. Step 4: Simplify right side
    65,414,142.80x = 3,909,344,356,447,287
  5. Step 5: Solve for x
    x = 3,909,344,356,447,287/65,414,142.80
  6. Step 6: Final answer
    x = 59,762,983.80

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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.