Home / 278,960,961.72-418,535,611.02-123,493,324.44

Finding the Fourth Proportional to 278,960,961.72, 418,535,611.02 and 123,493,324.44

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Solution

The fourth proportional to 278,960,961.72, 418,535,611.02 and 123,493,324.44 is: 185,281,674.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,960,961.72 : 418,535,611.02 = 123,493,324.44 : x
  2. Step 2: Convert to fraction form
    278,960,961.72/418,535,611.02 = 123,493,324.44/x
  3. Step 3: Cross multiply
    278,960,961.72x = 418,535,611.02 × 123,493,324.44
  4. Step 4: Simplify right side
    278,960,961.72x = 51,686,354,001,386,496
  5. Step 5: Solve for x
    x = 51,686,354,001,386,496/278,960,961.72
  6. Step 6: Final answer
    x = 185,281,674.12

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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.