Home / 103,344,139.90-155,016,209.85-68,906,763.10

Finding the Fourth Proportional to 103,344,139.90, 155,016,209.85 and 68,906,763.10

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Solution

The fourth proportional to 103,344,139.90, 155,016,209.85 and 68,906,763.10 is: 103,360,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,344,139.90 : 155,016,209.85 = 68,906,763.10 : x
  2. Step 2: Convert to fraction form
    103,344,139.90/155,016,209.85 = 68,906,763.10/x
  3. Step 3: Cross multiply
    103,344,139.90x = 155,016,209.85 × 68,906,763.10
  4. Step 4: Simplify right side
    103,344,139.90x = 10,681,665,248,793,836
  5. Step 5: Solve for x
    x = 10,681,665,248,793,836/103,344,139.90
  6. Step 6: Final answer
    x = 103,360,144.65

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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.