Home / 7,487,998.40-11,231,997.60-7,278,046.40

Finding the Fourth Proportional to 7,487,998.40, 11,231,997.60 and 7,278,046.40

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Solution

The fourth proportional to 7,487,998.40, 11,231,997.60 and 7,278,046.40 is: 10,917,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487,998.40 : 11,231,997.60 = 7,278,046.40 : x
  2. Step 2: Convert to fraction form
    7,487,998.40/11,231,997.60 = 7,278,046.40/x
  3. Step 3: Cross multiply
    7,487,998.40x = 11,231,997.60 × 7,278,046.40
  4. Step 4: Simplify right side
    7,487,998.40x = 81,746,999,697,488.64
  5. Step 5: Solve for x
    x = 81,746,999,697,488.64/7,487,998.40
  6. Step 6: Final answer
    x = 10,917,069.60

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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.