Home / 656,061,868.80-905,367,001.68-358,723,319.04

Finding the Fourth Proportional to 656,061,868.80, 905,367,001.68 and 358,723,319.04

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Solution

The fourth proportional to 656,061,868.80, 905,367,001.68 and 358,723,319.04 is: 495,039,067.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,061,868.80 : 905,367,001.68 = 358,723,319.04 : x
  2. Step 2: Convert to fraction form
    656,061,868.80/905,367,001.68 = 358,723,319.04/x
  3. Step 3: Cross multiply
    656,061,868.80x = 905,367,001.68 × 358,723,319.04
  4. Step 4: Simplify right side
    656,061,868.80x = 324,776,255,791,942,848
  5. Step 5: Solve for x
    x = 324,776,255,791,942,848/656,061,868.80
  6. Step 6: Final answer
    x = 495,039,067.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.