Home / 262,440,390.80-393,660,586.20-80,663,949.20

Finding the Fourth Proportional to 262,440,390.80, 393,660,586.20 and 80,663,949.20

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Solution

The fourth proportional to 262,440,390.80, 393,660,586.20 and 80,663,949.20 is: 120,995,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,440,390.80 : 393,660,586.20 = 80,663,949.20 : x
  2. Step 2: Convert to fraction form
    262,440,390.80/393,660,586.20 = 80,663,949.20/x
  3. Step 3: Cross multiply
    262,440,390.80x = 393,660,586.20 × 80,663,949.20
  4. Step 4: Simplify right side
    262,440,390.80x = 31,754,217,527,279,020
  5. Step 5: Solve for x
    x = 31,754,217,527,279,020/262,440,390.80
  6. Step 6: Final answer
    x = 120,995,923.80

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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.