Home / 12,125,423.70-18,188,135.55-11,407,978.35

Finding the Fourth Proportional to 12,125,423.70, 18,188,135.55 and 11,407,978.35

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Solution

The fourth proportional to 12,125,423.70, 18,188,135.55 and 11,407,978.35 is: 17,111,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125,423.70 : 18,188,135.55 = 11,407,978.35 : x
  2. Step 2: Convert to fraction form
    12,125,423.70/18,188,135.55 = 11,407,978.35/x
  3. Step 3: Cross multiply
    12,125,423.70x = 18,188,135.55 × 11,407,978.35
  4. Step 4: Simplify right side
    12,125,423.70x = 207,489,856,581,265.34
  5. Step 5: Solve for x
    x = 207,489,856,581,265.34/12,125,423.70
  6. Step 6: Final answer
    x = 17,111,967.53

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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.