Home / 10,478,438.30-15,717,657.45-9,982,426.70

Finding the Fourth Proportional to 10,478,438.30, 15,717,657.45 and 9,982,426.70

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Solution

The fourth proportional to 10,478,438.30, 15,717,657.45 and 9,982,426.70 is: 14,973,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478,438.30 : 15,717,657.45 = 9,982,426.70 : x
  2. Step 2: Convert to fraction form
    10,478,438.30/15,717,657.45 = 9,982,426.70/x
  3. Step 3: Cross multiply
    10,478,438.30x = 15,717,657.45 × 9,982,426.70
  4. Step 4: Simplify right side
    10,478,438.30x = 156,900,363,390,333.91
  5. Step 5: Solve for x
    x = 156,900,363,390,333.91/10,478,438.30
  6. Step 6: Final answer
    x = 14,973,640.05

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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.