Home / 10,388,221.90-15,564,618.15-8,864,757.70

Finding the Fourth Proportional to 10,388,221.90, 15,564,618.15 and 8,864,757.70

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Solution

The fourth proportional to 10,388,221.90, 15,564,618.15 and 8,864,757.70 is: 13,282,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388,221.90 : 15,564,618.15 = 8,864,757.70 : x
  2. Step 2: Convert to fraction form
    10,388,221.90/15,564,618.15 = 8,864,757.70/x
  3. Step 3: Cross multiply
    10,388,221.90x = 15,564,618.15 × 8,864,757.70
  4. Step 4: Simplify right side
    10,388,221.90x = 137,976,568,592,772.25
  5. Step 5: Solve for x
    x = 137,976,568,592,772.25/10,388,221.90
  6. Step 6: Final answer
    x = 13,282,019.76

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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.