Home / 138,528,998.10-207,656,445.15-65,617,625.70

Finding the Fourth Proportional to 138,528,998.10, 207,656,445.15 and 65,617,625.70

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Solution

The fourth proportional to 138,528,998.10, 207,656,445.15 and 65,617,625.70 is: 98,361,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,528,998.10 : 207,656,445.15 = 65,617,625.70 : x
  2. Step 2: Convert to fraction form
    138,528,998.10/207,656,445.15 = 65,617,625.70/x
  3. Step 3: Cross multiply
    138,528,998.10x = 207,656,445.15 × 65,617,625.70
  4. Step 4: Simplify right side
    138,528,998.10x = 13,625,922,892,045,282
  5. Step 5: Solve for x
    x = 13,625,922,892,045,282/138,528,998.10
  6. Step 6: Final answer
    x = 98,361,520.54

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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.