Home / 82,655,593.20-123,983,389.80-72,577,897.20

Finding the Fourth Proportional to 82,655,593.20, 123,983,389.80 and 72,577,897.20

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Solution

The fourth proportional to 82,655,593.20, 123,983,389.80 and 72,577,897.20 is: 108,866,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,655,593.20 : 123,983,389.80 = 72,577,897.20 : x
  2. Step 2: Convert to fraction form
    82,655,593.20/123,983,389.80 = 72,577,897.20/x
  3. Step 3: Cross multiply
    82,655,593.20x = 123,983,389.80 × 72,577,897.20
  4. Step 4: Simplify right side
    82,655,593.20x = 8,998,453,719,411,929
  5. Step 5: Solve for x
    x = 8,998,453,719,411,929/82,655,593.20
  6. Step 6: Final answer
    x = 108,866,845.80

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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.