Home / 278,175,087.91-383,882,376.71-152,735,408.71

Finding the Fourth Proportional to 278,175,087.91, 383,882,376.71 and 152,735,408.71

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Solution

The fourth proportional to 278,175,087.91, 383,882,376.71 and 152,735,408.71 is: 210,775,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,175,087.91 : 383,882,376.71 = 152,735,408.71 : x
  2. Step 2: Convert to fraction form
    278,175,087.91/383,882,376.71 = 152,735,408.71/x
  3. Step 3: Cross multiply
    278,175,087.91x = 383,882,376.71 × 152,735,408.71
  4. Step 4: Simplify right side
    278,175,087.91x = 58,632,431,702,790,168
  5. Step 5: Solve for x
    x = 58,632,431,702,790,168/278,175,087.91
  6. Step 6: Final answer
    x = 210,775,278.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.