Home / 278,337,145.87-417,503,060.38-169,192,451.71

Finding the Fourth Proportional to 278,337,145.87, 417,503,060.38 and 169,192,451.71

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Solution

The fourth proportional to 278,337,145.87, 417,503,060.38 and 169,192,451.71 is: 253,787,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,337,145.87 : 417,503,060.38 = 169,192,451.71 : x
  2. Step 2: Convert to fraction form
    278,337,145.87/417,503,060.38 = 169,192,451.71/x
  3. Step 3: Cross multiply
    278,337,145.87x = 417,503,060.38 × 169,192,451.71
  4. Step 4: Simplify right side
    278,337,145.87x = 70,638,366,382,120,368
  5. Step 5: Solve for x
    x = 70,638,366,382,120,368/278,337,145.87
  6. Step 6: Final answer
    x = 253,787,061.59

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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.