Home / 7,490,998.20-11,236,497.30-7,242,992.40

Finding the Fourth Proportional to 7,490,998.20, 11,236,497.30 and 7,242,992.40

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Solution

The fourth proportional to 7,490,998.20, 11,236,497.30 and 7,242,992.40 is: 10,864,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490,998.20 : 11,236,497.30 = 7,242,992.40 : x
  2. Step 2: Convert to fraction form
    7,490,998.20/11,236,497.30 = 7,242,992.40/x
  3. Step 3: Cross multiply
    7,490,998.20x = 11,236,497.30 × 7,242,992.40
  4. Step 4: Simplify right side
    7,490,998.20x = 81,385,864,546,520.53
  5. Step 5: Solve for x
    x = 81,385,864,546,520.53/7,490,998.20
  6. Step 6: Final answer
    x = 10,864,488.60

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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.