Home / 10,548,366.40-15,780,559.20-9,144,020.80

Finding the Fourth Proportional to 10,548,366.40, 15,780,559.20 and 9,144,020.80

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Solution

The fourth proportional to 10,548,366.40, 15,780,559.20 and 9,144,020.80 is: 13,679,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,548,366.40 : 15,780,559.20 = 9,144,020.80 : x
  2. Step 2: Convert to fraction form
    10,548,366.40/15,780,559.20 = 9,144,020.80/x
  3. Step 3: Cross multiply
    10,548,366.40x = 15,780,559.20 × 9,144,020.80
  4. Step 4: Simplify right side
    10,548,366.40x = 144,297,761,560,431.38
  5. Step 5: Solve for x
    x = 144,297,761,560,431.38/10,548,366.40
  6. Step 6: Final answer
    x = 13,679,631.15

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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.