Home / 52,019,761.20-78,006,022.20-19,660,909.20

Finding the Fourth Proportional to 52,019,761.20, 78,006,022.20 and 19,660,909.20

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Solution

The fourth proportional to 52,019,761.20, 78,006,022.20 and 19,660,909.20 is: 29,482,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019,761.20 : 78,006,022.20 = 19,660,909.20 : x
  2. Step 2: Convert to fraction form
    52,019,761.20/78,006,022.20 = 19,660,909.20/x
  3. Step 3: Cross multiply
    52,019,761.20x = 78,006,022.20 × 19,660,909.20
  4. Step 4: Simplify right side
    52,019,761.20x = 1,533,669,319,527,384.25
  5. Step 5: Solve for x
    x = 1,533,669,319,527,384.25/52,019,761.20
  6. Step 6: Final answer
    x = 29,482,436.75

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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.