Home / 18,802,657.78-28,206,496.25-7,440,449.20

Finding the Fourth Proportional to 18,802,657.78, 28,206,496.25 and 7,440,449.20

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Solution

The fourth proportional to 18,802,657.78, 28,206,496.25 and 7,440,449.20 is: 11,161,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,657.78 : 28,206,496.25 = 7,440,449.20 : x
  2. Step 2: Convert to fraction form
    18,802,657.78/28,206,496.25 = 7,440,449.20/x
  3. Step 3: Cross multiply
    18,802,657.78x = 28,206,496.25 × 7,440,449.20
  4. Step 4: Simplify right side
    18,802,657.78x = 209,869,002,378,298.69
  5. Step 5: Solve for x
    x = 209,869,002,378,298.69/18,802,657.78
  6. Step 6: Final answer
    x = 11,161,666.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.