Home / 381,690,136.80-572,535,205.20-187,631,503.20

Finding the Fourth Proportional to 381,690,136.80, 572,535,205.20 and 187,631,503.20

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Solution

The fourth proportional to 381,690,136.80, 572,535,205.20 and 187,631,503.20 is: 281,447,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,690,136.80 : 572,535,205.20 = 187,631,503.20 : x
  2. Step 2: Convert to fraction form
    381,690,136.80/572,535,205.20 = 187,631,503.20/x
  3. Step 3: Cross multiply
    381,690,136.80x = 572,535,205.20 × 187,631,503.20
  4. Step 4: Simplify right side
    381,690,136.80x = 107,425,641,186,596,464
  5. Step 5: Solve for x
    x = 107,425,641,186,596,464/381,690,136.80
  6. Step 6: Final answer
    x = 281,447,254.80

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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.