Home / 8,252,942,207.80-12,379,413,311.70-5,640,803,404.60

Finding the Fourth Proportional to 8,252,942,207.80, 12,379,413,311.70 and 5,640,803,404.60

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Solution

The fourth proportional to 8,252,942,207.80, 12,379,413,311.70 and 5,640,803,404.60 is: 8,461,205,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252,942,207.80 : 12,379,413,311.70 = 5,640,803,404.60 : x
  2. Step 2: Convert to fraction form
    8,252,942,207.80/12,379,413,311.70 = 5,640,803,404.60/x
  3. Step 3: Cross multiply
    8,252,942,207.80x = 12,379,413,311.70 × 5,640,803,404.60
  4. Step 4: Simplify right side
    8,252,942,207.80x = 69,829,836,755,587,932,160
  5. Step 5: Solve for x
    x = 69,829,836,755,587,932,160/8,252,942,207.80
  6. Step 6: Final answer
    x = 8,461,205,106.90

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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.