Home / 72,226,980.18-108,155,501.10-39,842,890.20

Finding the Fourth Proportional to 72,226,980.18, 108,155,501.10 and 39,842,890.20

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Solution

The fourth proportional to 72,226,980.18, 108,155,501.10 and 39,842,890.20 is: 59,662,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,226,980.18 : 108,155,501.10 = 39,842,890.20 : x
  2. Step 2: Convert to fraction form
    72,226,980.18/108,155,501.10 = 39,842,890.20/x
  3. Step 3: Cross multiply
    72,226,980.18x = 108,155,501.10 × 39,842,890.20
  4. Step 4: Simplify right side
    72,226,980.18x = 4,309,227,754,853,279.50
  5. Step 5: Solve for x
    x = 4,309,227,754,853,279.50/72,226,980.18
  6. Step 6: Final answer
    x = 59,662,299.93

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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.