Home / 72,502,057.10-108,753,085.65-69,715,138.70

Finding the Fourth Proportional to 72,502,057.10, 108,753,085.65 and 69,715,138.70

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Solution

The fourth proportional to 72,502,057.10, 108,753,085.65 and 69,715,138.70 is: 104,572,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,502,057.10 : 108,753,085.65 = 69,715,138.70 : x
  2. Step 2: Convert to fraction form
    72,502,057.10/108,753,085.65 = 69,715,138.70/x
  3. Step 3: Cross multiply
    72,502,057.10x = 108,753,085.65 × 69,715,138.70
  4. Step 4: Simplify right side
    72,502,057.10x = 7,581,736,450,142,730
  5. Step 5: Solve for x
    x = 7,581,736,450,142,730/72,502,057.10
  6. Step 6: Final answer
    x = 104,572,708.05

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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.