Home / 82,620,008.20-123,930,012.30-74,400,387.40

Finding the Fourth Proportional to 82,620,008.20, 123,930,012.30 and 74,400,387.40

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Solution

The fourth proportional to 82,620,008.20, 123,930,012.30 and 74,400,387.40 is: 111,600,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,620,008.20 : 123,930,012.30 = 74,400,387.40 : x
  2. Step 2: Convert to fraction form
    82,620,008.20/123,930,012.30 = 74,400,387.40/x
  3. Step 3: Cross multiply
    82,620,008.20x = 123,930,012.30 × 74,400,387.40
  4. Step 4: Simplify right side
    82,620,008.20x = 9,220,440,925,606,766
  5. Step 5: Solve for x
    x = 9,220,440,925,606,766/82,620,008.20
  6. Step 6: Final answer
    x = 111,600,581.10

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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.