Home / 415,136,439.20-622,704,658.80-262,459,344.80

Finding the Fourth Proportional to 415,136,439.20, 622,704,658.80 and 262,459,344.80

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Solution

The fourth proportional to 415,136,439.20, 622,704,658.80 and 262,459,344.80 is: 393,689,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,136,439.20 : 622,704,658.80 = 262,459,344.80 : x
  2. Step 2: Convert to fraction form
    415,136,439.20/622,704,658.80 = 262,459,344.80/x
  3. Step 3: Cross multiply
    415,136,439.20x = 622,704,658.80 × 262,459,344.80
  4. Step 4: Simplify right side
    415,136,439.20x = 163,434,656,752,555,552
  5. Step 5: Solve for x
    x = 163,434,656,752,555,552/415,136,439.20
  6. Step 6: Final answer
    x = 393,689,017.20

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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.