Home / 54,569,428.80-81,865,515.60-18,189,121.20

Finding the Fourth Proportional to 54,569,428.80, 81,865,515.60 and 18,189,121.20

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Solution

The fourth proportional to 54,569,428.80, 81,865,515.60 and 18,189,121.20 is: 27,287,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,569,428.80 : 81,865,515.60 = 18,189,121.20 : x
  2. Step 2: Convert to fraction form
    54,569,428.80/81,865,515.60 = 18,189,121.20/x
  3. Step 3: Cross multiply
    54,569,428.80x = 81,865,515.60 × 18,189,121.20
  4. Step 4: Simplify right side
    54,569,428.80x = 1,489,061,785,348,890.50
  5. Step 5: Solve for x
    x = 1,489,061,785,348,890.50/54,569,428.80
  6. Step 6: Final answer
    x = 27,287,472.46

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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.