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Finding the Fourth Proportional to 798,451,960.80, 1,195,886,350.80 and 655,124,728.80

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Solution

The fourth proportional to 798,451,960.80, 1,195,886,350.80 and 655,124,728.80 is: 981,217,104.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,451,960.80 : 1,195,886,350.80 = 655,124,728.80 : x
  2. Step 2: Convert to fraction form
    798,451,960.80/1,195,886,350.80 = 655,124,728.80/x
  3. Step 3: Cross multiply
    798,451,960.80x = 1,195,886,350.80 × 655,124,728.80
  4. Step 4: Simplify right side
    798,451,960.80x = 783,454,721,243,471,616
  5. Step 5: Solve for x
    x = 783,454,721,243,471,616/798,451,960.80
  6. Step 6: Final answer
    x = 981,217,104.73

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1.5x scale

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.