Home / 38,731,829.39-53,445,861-21,981,234.74

Finding the Fourth Proportional to 38,731,829.39, 53,445,861 and 21,981,234.74

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Solution

The fourth proportional to 38,731,829.39, 53,445,861 and 21,981,234.74 is: 30,331,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731,829.39 : 53,445,861 = 21,981,234.74 : x
  2. Step 2: Convert to fraction form
    38,731,829.39/53,445,861 = 21,981,234.74/x
  3. Step 3: Cross multiply
    38,731,829.39x = 53,445,861 × 21,981,234.74
  4. Step 4: Simplify right side
    38,731,829.39x = 1,174,806,016,522,411
  5. Step 5: Solve for x
    x = 1,174,806,016,522,411/38,731,829.39
  6. Step 6: Final answer
    x = 30,331,797.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.