Home / 20,787,221.19-31,180,306.91-5,640,759.03

Finding the Fourth Proportional to 20,787,221.19, 31,180,306.91 and 5,640,759.03

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Solution

The fourth proportional to 20,787,221.19, 31,180,306.91 and 5,640,759.03 is: 8,460,996.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787,221.19 : 31,180,306.91 = 5,640,759.03 : x
  2. Step 2: Convert to fraction form
    20,787,221.19/31,180,306.91 = 5,640,759.03/x
  3. Step 3: Cross multiply
    20,787,221.19x = 31,180,306.91 × 5,640,759.03
  4. Step 4: Simplify right side
    20,787,221.19x = 175,880,597,732,550.12
  5. Step 5: Solve for x
    x = 175,880,597,732,550.12/20,787,221.19
  6. Step 6: Final answer
    x = 8,460,996.12

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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.