Home / 156,998,367.71-216,653,787.56-86,433,273.44

Finding the Fourth Proportional to 156,998,367.71, 216,653,787.56 and 86,433,273.44

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Solution

The fourth proportional to 156,998,367.71, 216,653,787.56 and 86,433,273.44 is: 119,275,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,998,367.71 : 216,653,787.56 = 86,433,273.44 : x
  2. Step 2: Convert to fraction form
    156,998,367.71/216,653,787.56 = 86,433,273.44/x
  3. Step 3: Cross multiply
    156,998,367.71x = 216,653,787.56 × 86,433,273.44
  4. Step 4: Simplify right side
    156,998,367.71x = 18,726,096,060,469,716
  5. Step 5: Solve for x
    x = 18,726,096,060,469,716/156,998,367.71
  6. Step 6: Final answer
    x = 119,275,737.28

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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.