Home / 138,025,505.10-206,862,422.85-73,360,289.10

Finding the Fourth Proportional to 138,025,505.10, 206,862,422.85 and 73,360,289.10

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Solution

The fourth proportional to 138,025,505.10, 206,862,422.85 and 73,360,289.10 is: 109,946,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,025,505.10 : 206,862,422.85 = 73,360,289.10 : x
  2. Step 2: Convert to fraction form
    138,025,505.10/206,862,422.85 = 73,360,289.10/x
  3. Step 3: Cross multiply
    138,025,505.10x = 206,862,422.85 × 73,360,289.10
  4. Step 4: Simplify right side
    138,025,505.10x = 15,175,487,144,202,444
  5. Step 5: Solve for x
    x = 15,175,487,144,202,444/138,025,505.10
  6. Step 6: Final answer
    x = 109,946,977.79

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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.