Home / 87,321,969.60-130,982,954.40-61,812,801.60

Finding the Fourth Proportional to 87,321,969.60, 130,982,954.40 and 61,812,801.60

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Solution

The fourth proportional to 87,321,969.60, 130,982,954.40 and 61,812,801.60 is: 92,719,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,321,969.60 : 130,982,954.40 = 61,812,801.60 : x
  2. Step 2: Convert to fraction form
    87,321,969.60/130,982,954.40 = 61,812,801.60/x
  3. Step 3: Cross multiply
    87,321,969.60x = 130,982,954.40 × 61,812,801.60
  4. Step 4: Simplify right side
    87,321,969.60x = 8,096,423,373,309,048
  5. Step 5: Solve for x
    x = 8,096,423,373,309,048/87,321,969.60
  6. Step 6: Final answer
    x = 92,719,202.40

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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.