Home / 129,087,998.80-193,631,998.20-68,472,523.60

Finding the Fourth Proportional to 129,087,998.80, 193,631,998.20 and 68,472,523.60

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Solution

The fourth proportional to 129,087,998.80, 193,631,998.20 and 68,472,523.60 is: 102,708,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,087,998.80 : 193,631,998.20 = 68,472,523.60 : x
  2. Step 2: Convert to fraction form
    129,087,998.80/193,631,998.20 = 68,472,523.60/x
  3. Step 3: Cross multiply
    129,087,998.80x = 193,631,998.20 × 68,472,523.60
  4. Step 4: Simplify right side
    129,087,998.80x = 13,258,471,566,464,656
  5. Step 5: Solve for x
    x = 13,258,471,566,464,656/129,087,998.80
  6. Step 6: Final answer
    x = 102,708,785.40

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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.