Home / 129,816,002.30-194,724,003.45-128,920,207.10

Finding the Fourth Proportional to 129,816,002.30, 194,724,003.45 and 128,920,207.10

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Solution

The fourth proportional to 129,816,002.30, 194,724,003.45 and 128,920,207.10 is: 193,380,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,816,002.30 : 194,724,003.45 = 128,920,207.10 : x
  2. Step 2: Convert to fraction form
    129,816,002.30/194,724,003.45 = 128,920,207.10/x
  3. Step 3: Cross multiply
    129,816,002.30x = 194,724,003.45 × 128,920,207.10
  4. Step 4: Simplify right side
    129,816,002.30x = 25,103,858,852,115,112
  5. Step 5: Solve for x
    x = 25,103,858,852,115,112/129,816,002.30
  6. Step 6: Final answer
    x = 193,380,310.65

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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.