Home / 8,680,203,146.80-13,020,304,720.20-8,618,981,143.60

Finding the Fourth Proportional to 8,680,203,146.80, 13,020,304,720.20 and 8,618,981,143.60

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Solution

The fourth proportional to 8,680,203,146.80, 13,020,304,720.20 and 8,618,981,143.60 is: 12,928,471,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,203,146.80 : 13,020,304,720.20 = 8,618,981,143.60 : x
  2. Step 2: Convert to fraction form
    8,680,203,146.80/13,020,304,720.20 = 8,618,981,143.60/x
  3. Step 3: Cross multiply
    8,680,203,146.80x = 13,020,304,720.20 × 8,618,981,143.60
  4. Step 4: Simplify right side
    8,680,203,146.80x = 112,221,760,867,329,884,160
  5. Step 5: Solve for x
    x = 112,221,760,867,329,884,160/8,680,203,146.80
  6. Step 6: Final answer
    x = 12,928,471,715.40

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Double scale
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Similar ratio
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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.