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Finding the Fourth Proportional to 54,649,993.92, 81,962,898.81 and 15,780,008.58

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Solution

The fourth proportional to 54,649,993.92, 81,962,898.81 and 15,780,008.58 is: 23,666,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,649,993.92 : 81,962,898.81 = 15,780,008.58 : x
  2. Step 2: Convert to fraction form
    54,649,993.92/81,962,898.81 = 15,780,008.58/x
  3. Step 3: Cross multiply
    54,649,993.92x = 81,962,898.81 × 15,780,008.58
  4. Step 4: Simplify right side
    54,649,993.92x = 1,293,375,246,463,471.75
  5. Step 5: Solve for x
    x = 1,293,375,246,463,471.75/54,649,993.92
  6. Step 6: Final answer
    x = 23,666,521.32

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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.