Home / 7,407,149.40-11,134,343.70-6,981,996.60

Finding the Fourth Proportional to 7,407,149.40, 11,134,343.70 and 6,981,996.60

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Solution

The fourth proportional to 7,407,149.40, 11,134,343.70 and 6,981,996.60 is: 10,495,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407,149.40 : 11,134,343.70 = 6,981,996.60 : x
  2. Step 2: Convert to fraction form
    7,407,149.40/11,134,343.70 = 6,981,996.60/x
  3. Step 3: Cross multiply
    7,407,149.40x = 11,134,343.70 × 6,981,996.60
  4. Step 4: Simplify right side
    7,407,149.40x = 77,739,949,856,631.41
  5. Step 5: Solve for x
    x = 77,739,949,856,631.41/7,407,149.40
  6. Step 6: Final answer
    x = 10,495,258.79

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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.