Home / 8,278,906.10-12,418,359.15-7,019,194.10

Finding the Fourth Proportional to 8,278,906.10, 12,418,359.15 and 7,019,194.10

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Solution

The fourth proportional to 8,278,906.10, 12,418,359.15 and 7,019,194.10 is: 10,528,791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,906.10 : 12,418,359.15 = 7,019,194.10 : x
  2. Step 2: Convert to fraction form
    8,278,906.10/12,418,359.15 = 7,019,194.10/x
  3. Step 3: Cross multiply
    8,278,906.10x = 12,418,359.15 × 7,019,194.10
  4. Step 4: Simplify right side
    8,278,906.10x = 87,166,873,277,361.02
  5. Step 5: Solve for x
    x = 87,166,873,277,361.02/8,278,906.10
  6. Step 6: Final answer
    x = 10,528,791.15

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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.