Home / 8,520,967,915.20-12,781,451,872.80-7,595,835,422.40

Finding the Fourth Proportional to 8,520,967,915.20, 12,781,451,872.80 and 7,595,835,422.40

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Solution

The fourth proportional to 8,520,967,915.20, 12,781,451,872.80 and 7,595,835,422.40 is: 11,393,753,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,967,915.20 : 12,781,451,872.80 = 7,595,835,422.40 : x
  2. Step 2: Convert to fraction form
    8,520,967,915.20/12,781,451,872.80 = 7,595,835,422.40/x
  3. Step 3: Cross multiply
    8,520,967,915.20x = 12,781,451,872.80 × 7,595,835,422.40
  4. Step 4: Simplify right side
    8,520,967,915.20x = 97,085,804,885,115,043,840
  5. Step 5: Solve for x
    x = 97,085,804,885,115,043,840/8,520,967,915.20
  6. Step 6: Final answer
    x = 11,393,753,133.60

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Double scale
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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.