Home / 80,453,006.80-120,679,510.20-48,204,379.60

Finding the Fourth Proportional to 80,453,006.80, 120,679,510.20 and 48,204,379.60

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Solution

The fourth proportional to 80,453,006.80, 120,679,510.20 and 48,204,379.60 is: 72,306,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,453,006.80 : 120,679,510.20 = 48,204,379.60 : x
  2. Step 2: Convert to fraction form
    80,453,006.80/120,679,510.20 = 48,204,379.60/x
  3. Step 3: Cross multiply
    80,453,006.80x = 120,679,510.20 × 48,204,379.60
  4. Step 4: Simplify right side
    80,453,006.80x = 5,817,280,919,622,872
  5. Step 5: Solve for x
    x = 5,817,280,919,622,872/80,453,006.80
  6. Step 6: Final answer
    x = 72,306,569.40

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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.