Home / 8,090,721.10-12,136,081.65-7,278,906.70

Finding the Fourth Proportional to 8,090,721.10, 12,136,081.65 and 7,278,906.70

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Solution

The fourth proportional to 8,090,721.10, 12,136,081.65 and 7,278,906.70 is: 10,918,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090,721.10 : 12,136,081.65 = 7,278,906.70 : x
  2. Step 2: Convert to fraction form
    8,090,721.10/12,136,081.65 = 7,278,906.70/x
  3. Step 3: Cross multiply
    8,090,721.10x = 12,136,081.65 × 7,278,906.70
  4. Step 4: Simplify right side
    8,090,721.10x = 88,337,406,033,932.06
  5. Step 5: Solve for x
    x = 88,337,406,033,932.06/8,090,721.10
  6. Step 6: Final answer
    x = 10,918,360.05

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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.