Home / 8,045,984.90-12,068,977.35-7,989,997.70

Finding the Fourth Proportional to 8,045,984.90, 12,068,977.35 and 7,989,997.70

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Solution

The fourth proportional to 8,045,984.90, 12,068,977.35 and 7,989,997.70 is: 11,984,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045,984.90 : 12,068,977.35 = 7,989,997.70 : x
  2. Step 2: Convert to fraction form
    8,045,984.90/12,068,977.35 = 7,989,997.70/x
  3. Step 3: Cross multiply
    8,045,984.90x = 12,068,977.35 × 7,989,997.70
  4. Step 4: Simplify right side
    8,045,984.90x = 96,431,101,267,852.09
  5. Step 5: Solve for x
    x = 96,431,101,267,852.09/8,045,984.90
  6. Step 6: Final answer
    x = 11,984,996.55

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Double scale
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Similar ratio
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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.