Home / 138,452,660.92-207,618,403.38-65,690,192.44

Finding the Fourth Proportional to 138,452,660.92, 207,618,403.38 and 65,690,192.44

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Solution

The fourth proportional to 138,452,660.92, 207,618,403.38 and 65,690,192.44 is: 98,506,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,660.92 : 207,618,403.38 = 65,690,192.44 : x
  2. Step 2: Convert to fraction form
    138,452,660.92/207,618,403.38 = 65,690,192.44/x
  3. Step 3: Cross multiply
    138,452,660.92x = 207,618,403.38 × 65,690,192.44
  4. Step 4: Simplify right side
    138,452,660.92x = 13,638,492,872,117,746
  5. Step 5: Solve for x
    x = 13,638,492,872,117,746/138,452,660.92
  6. Step 6: Final answer
    x = 98,506,542.10

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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.