Home / 278,856,704.40-418,229,069.40-133,289,984.40

Finding the Fourth Proportional to 278,856,704.40, 418,229,069.40 and 133,289,984.40

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Solution

The fourth proportional to 278,856,704.40, 418,229,069.40 and 133,289,984.40 is: 199,908,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,856,704.40 : 418,229,069.40 = 133,289,984.40 : x
  2. Step 2: Convert to fraction form
    278,856,704.40/418,229,069.40 = 133,289,984.40/x
  3. Step 3: Cross multiply
    278,856,704.40x = 418,229,069.40 × 133,289,984.40
  4. Step 4: Simplify right side
    278,856,704.40x = 55,745,746,135,952,520
  5. Step 5: Solve for x
    x = 55,745,746,135,952,520/278,856,704.40
  6. Step 6: Final answer
    x = 199,908,215.43

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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.