Home / 69,887,787.20-96,445,469.76-40,536,497.60

Finding the Fourth Proportional to 69,887,787.20, 96,445,469.76 and 40,536,497.60

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Solution

The fourth proportional to 69,887,787.20, 96,445,469.76 and 40,536,497.60 is: 55,940,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,887,787.20 : 96,445,469.76 = 40,536,497.60 : x
  2. Step 2: Convert to fraction form
    69,887,787.20/96,445,469.76 = 40,536,497.60/x
  3. Step 3: Cross multiply
    69,887,787.20x = 96,445,469.76 × 40,536,497.60
  4. Step 4: Simplify right side
    69,887,787.20x = 3,909,561,553,457,113
  5. Step 5: Solve for x
    x = 3,909,561,553,457,113/69,887,787.20
  6. Step 6: Final answer
    x = 55,940,554.28

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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.