Home / 54,938,306.32-82,415,013.75-20,391,772.70

Finding the Fourth Proportional to 54,938,306.32, 82,415,013.75 and 20,391,772.70

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Solution

The fourth proportional to 54,938,306.32, 82,415,013.75 and 20,391,772.70 is: 30,590,463.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,938,306.32 : 82,415,013.75 = 20,391,772.70 : x
  2. Step 2: Convert to fraction form
    54,938,306.32/82,415,013.75 = 20,391,772.70/x
  3. Step 3: Cross multiply
    54,938,306.32x = 82,415,013.75 × 20,391,772.70
  4. Step 4: Simplify right side
    54,938,306.32x = 1,680,588,227,663,412.25
  5. Step 5: Solve for x
    x = 1,680,588,227,663,412.25/54,938,306.32
  6. Step 6: Final answer
    x = 30,590,463.02

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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.