Home / 8,085,120,998.40-12,127,681,497.60-3,942,432,115.20

Finding the Fourth Proportional to 8,085,120,998.40, 12,127,681,497.60 and 3,942,432,115.20

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Solution

The fourth proportional to 8,085,120,998.40, 12,127,681,497.60 and 3,942,432,115.20 is: 5,913,648,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,120,998.40 : 12,127,681,497.60 = 3,942,432,115.20 : x
  2. Step 2: Convert to fraction form
    8,085,120,998.40/12,127,681,497.60 = 3,942,432,115.20/x
  3. Step 3: Cross multiply
    8,085,120,998.40x = 12,127,681,497.60 × 3,942,432,115.20
  4. Step 4: Simplify right side
    8,085,120,998.40x = 47,812,561,019,055,071,232
  5. Step 5: Solve for x
    x = 47,812,561,019,055,071,232/8,085,120,998.40
  6. Step 6: Final answer
    x = 5,913,648,172.80

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Half scale
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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.