Home / 12,458,213.70-18,687,320.55-9,098,981.70

Finding the Fourth Proportional to 12,458,213.70, 18,687,320.55 and 9,098,981.70

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Solution

The fourth proportional to 12,458,213.70, 18,687,320.55 and 9,098,981.70 is: 13,648,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,213.70 : 18,687,320.55 = 9,098,981.70 : x
  2. Step 2: Convert to fraction form
    12,458,213.70/18,687,320.55 = 9,098,981.70/x
  3. Step 3: Cross multiply
    12,458,213.70x = 18,687,320.55 × 9,098,981.70
  4. Step 4: Simplify right side
    12,458,213.70x = 170,035,587,706,483.94
  5. Step 5: Solve for x
    x = 170,035,587,706,483.94/12,458,213.70
  6. Step 6: Final answer
    x = 13,648,472.55

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Similar ratio
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1.5x scale

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.