Home / 82,439,361.60-123,659,042.40-21,861,211.20

Finding the Fourth Proportional to 82,439,361.60, 123,659,042.40 and 21,861,211.20

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Solution

The fourth proportional to 82,439,361.60, 123,659,042.40 and 21,861,211.20 is: 32,791,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,439,361.60 : 123,659,042.40 = 21,861,211.20 : x
  2. Step 2: Convert to fraction form
    82,439,361.60/123,659,042.40 = 21,861,211.20/x
  3. Step 3: Cross multiply
    82,439,361.60x = 123,659,042.40 × 21,861,211.20
  4. Step 4: Simplify right side
    82,439,361.60x = 2,703,336,442,696,155
  5. Step 5: Solve for x
    x = 2,703,336,442,696,155/82,439,361.60
  6. Step 6: Final answer
    x = 32,791,816.80

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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.