Home / 1,170,049,067.10-1,755,073,600.65-393,436,619.10

Finding the Fourth Proportional to 1,170,049,067.10, 1,755,073,600.65 and 393,436,619.10

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Solution

The fourth proportional to 1,170,049,067.10, 1,755,073,600.65 and 393,436,619.10 is: 590,154,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,049,067.10 : 1,755,073,600.65 = 393,436,619.10 : x
  2. Step 2: Convert to fraction form
    1,170,049,067.10/1,755,073,600.65 = 393,436,619.10/x
  3. Step 3: Cross multiply
    1,170,049,067.10x = 1,755,073,600.65 × 393,436,619.10
  4. Step 4: Simplify right side
    1,170,049,067.10x = 690,510,223,711,399,680
  5. Step 5: Solve for x
    x = 690,510,223,711,399,680/1,170,049,067.10
  6. Step 6: Final answer
    x = 590,154,928.65

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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.