Home / 129,088,001.80-193,632,002.70-68,472,526.60

Finding the Fourth Proportional to 129,088,001.80, 193,632,002.70 and 68,472,526.60

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Solution

The fourth proportional to 129,088,001.80, 193,632,002.70 and 68,472,526.60 is: 102,708,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,088,001.80 : 193,632,002.70 = 68,472,526.60 : x
  2. Step 2: Convert to fraction form
    129,088,001.80/193,632,002.70 = 68,472,526.60/x
  3. Step 3: Cross multiply
    129,088,001.80x = 193,632,002.70 × 68,472,526.60
  4. Step 4: Simplify right side
    129,088,001.80x = 13,258,472,455,487,020
  5. Step 5: Solve for x
    x = 13,258,472,455,487,020/129,088,001.80
  6. Step 6: Final answer
    x = 102,708,789.90

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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.