Home / 8,427,131,158.40-12,640,696,737.60-7,910,570,506.40

Finding the Fourth Proportional to 8,427,131,158.40, 12,640,696,737.60 and 7,910,570,506.40

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Solution

The fourth proportional to 8,427,131,158.40, 12,640,696,737.60 and 7,910,570,506.40 is: 11,865,855,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427,131,158.40 : 12,640,696,737.60 = 7,910,570,506.40 : x
  2. Step 2: Convert to fraction form
    8,427,131,158.40/12,640,696,737.60 = 7,910,570,506.40/x
  3. Step 3: Cross multiply
    8,427,131,158.40x = 12,640,696,737.60 × 7,910,570,506.40
  4. Step 4: Simplify right side
    8,427,131,158.40x = 99,995,122,792,805,253,120
  5. Step 5: Solve for x
    x = 99,995,122,792,805,253,120/8,427,131,158.40
  6. Step 6: Final answer
    x = 11,865,855,759.60

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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.