Home / 128,304,115.40-192,456,173.10-124,524,979.40

Finding the Fourth Proportional to 128,304,115.40, 192,456,173.10 and 124,524,979.40

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Solution

The fourth proportional to 128,304,115.40, 192,456,173.10 and 124,524,979.40 is: 186,787,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,115.40 : 192,456,173.10 = 124,524,979.40 : x
  2. Step 2: Convert to fraction form
    128,304,115.40/192,456,173.10 = 124,524,979.40/x
  3. Step 3: Cross multiply
    128,304,115.40x = 192,456,173.10 × 124,524,979.40
  4. Step 4: Simplify right side
    128,304,115.40x = 23,965,600,990,680,336
  5. Step 5: Solve for x
    x = 23,965,600,990,680,336/128,304,115.40
  6. Step 6: Final answer
    x = 186,787,469.10

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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.