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Finding the Fourth Proportional to 54,282,661.70, 81,414,661.35 and 20,186,456.90

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Solution

The fourth proportional to 54,282,661.70, 81,414,661.35 and 20,186,456.90 is: 30,276,215.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,282,661.70 : 81,414,661.35 = 20,186,456.90 : x
  2. Step 2: Convert to fraction form
    54,282,661.70/81,414,661.35 = 20,186,456.90/x
  3. Step 3: Cross multiply
    54,282,661.70x = 81,414,661.35 × 20,186,456.90
  4. Step 4: Simplify right side
    54,282,661.70x = 1,643,473,552,369,870.50
  5. Step 5: Solve for x
    x = 1,643,473,552,369,870.50/54,282,661.70
  6. Step 6: Final answer
    x = 30,276,215.29

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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.