Home / 8,087,761,019.70-12,131,641,529.55-6,618,432,942.90

Finding the Fourth Proportional to 8,087,761,019.70, 12,131,641,529.55 and 6,618,432,942.90

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Solution

The fourth proportional to 8,087,761,019.70, 12,131,641,529.55 and 6,618,432,942.90 is: 9,927,649,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087,761,019.70 : 12,131,641,529.55 = 6,618,432,942.90 : x
  2. Step 2: Convert to fraction form
    8,087,761,019.70/12,131,641,529.55 = 6,618,432,942.90/x
  3. Step 3: Cross multiply
    8,087,761,019.70x = 12,131,641,529.55 × 6,618,432,942.90
  4. Step 4: Simplify right side
    8,087,761,019.70x = 80,292,455,950,627,454,976
  5. Step 5: Solve for x
    x = 80,292,455,950,627,454,976/8,087,761,019.70
  6. Step 6: Final answer
    x = 9,927,649,414.35

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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.