Home / 278,029,584.95-383,680,828.13-154,290,174.71

Finding the Fourth Proportional to 278,029,584.95, 383,680,828.13 and 154,290,174.71

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Solution

The fourth proportional to 278,029,584.95, 383,680,828.13 and 154,290,174.71 is: 212,920,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,029,584.95 : 383,680,828.13 = 154,290,174.71 : x
  2. Step 2: Convert to fraction form
    278,029,584.95/383,680,828.13 = 154,290,174.71/x
  3. Step 3: Cross multiply
    278,029,584.95x = 383,680,828.13 × 154,290,174.71
  4. Step 4: Simplify right side
    278,029,584.95x = 59,198,182,005,055,184
  5. Step 5: Solve for x
    x = 59,198,182,005,055,184/278,029,584.95
  6. Step 6: Final answer
    x = 212,920,441.60

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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.