Home / 7,680,040.80-11,520,061.20-5,689,384.80

Finding the Fourth Proportional to 7,680,040.80, 11,520,061.20 and 5,689,384.80

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Solution

The fourth proportional to 7,680,040.80, 11,520,061.20 and 5,689,384.80 is: 8,534,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,040.80 : 11,520,061.20 = 5,689,384.80 : x
  2. Step 2: Convert to fraction form
    7,680,040.80/11,520,061.20 = 5,689,384.80/x
  3. Step 3: Cross multiply
    7,680,040.80x = 11,520,061.20 × 5,689,384.80
  4. Step 4: Simplify right side
    7,680,040.80x = 65,542,061,086,349.75
  5. Step 5: Solve for x
    x = 65,542,061,086,349.75/7,680,040.80
  6. Step 6: Final answer
    x = 8,534,077.20

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Similar ratio
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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.