Home / 9,220,839.89-13,840,999.28-5,180,780.21

Finding the Fourth Proportional to 9,220,839.89, 13,840,999.28 and 5,180,780.21

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Solution

The fourth proportional to 9,220,839.89, 13,840,999.28 and 5,180,780.21 is: 7,776,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220,839.89 : 13,840,999.28 = 5,180,780.21 : x
  2. Step 2: Convert to fraction form
    9,220,839.89/13,840,999.28 = 5,180,780.21/x
  3. Step 3: Cross multiply
    9,220,839.89x = 13,840,999.28 × 5,180,780.21
  4. Step 4: Simplify right side
    9,220,839.89x = 71,707,175,156,448.25
  5. Step 5: Solve for x
    x = 71,707,175,156,448.25/9,220,839.89
  6. Step 6: Final answer
    x = 7,776,642.48

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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.