Home / 381,690,137.80-572,535,206.70-187,631,504.20

Finding the Fourth Proportional to 381,690,137.80, 572,535,206.70 and 187,631,504.20

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Solution

The fourth proportional to 381,690,137.80, 572,535,206.70 and 187,631,504.20 is: 281,447,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,690,137.80 : 572,535,206.70 = 187,631,504.20 : x
  2. Step 2: Convert to fraction form
    381,690,137.80/572,535,206.70 = 187,631,504.20/x
  3. Step 3: Cross multiply
    381,690,137.80x = 572,535,206.70 × 187,631,504.20
  4. Step 4: Simplify right side
    381,690,137.80x = 107,425,642,040,578,928
  5. Step 5: Solve for x
    x = 107,425,642,040,578,928/381,690,137.80
  6. Step 6: Final answer
    x = 281,447,256.30

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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.