Home / 278,745,932.80-418,174,711.20-156,098,666.56

Finding the Fourth Proportional to 278,745,932.80, 418,174,711.20 and 156,098,666.56

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Solution

The fourth proportional to 278,745,932.80, 418,174,711.20 and 156,098,666.56 is: 234,179,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,745,932.80 : 418,174,711.20 = 156,098,666.56 : x
  2. Step 2: Convert to fraction form
    278,745,932.80/418,174,711.20 = 156,098,666.56/x
  3. Step 3: Cross multiply
    278,745,932.80x = 418,174,711.20 × 156,098,666.56
  4. Step 4: Simplify right side
    278,745,932.80x = 65,276,514,807,433,096
  5. Step 5: Solve for x
    x = 65,276,514,807,433,096/278,745,932.80
  6. Step 6: Final answer
    x = 234,179,254.75

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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.