Home / 278,679,251.70-418,018,877.55-186,846,246.90

Finding the Fourth Proportional to 278,679,251.70, 418,018,877.55 and 186,846,246.90

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Solution

The fourth proportional to 278,679,251.70, 418,018,877.55 and 186,846,246.90 is: 280,269,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,679,251.70 : 418,018,877.55 = 186,846,246.90 : x
  2. Step 2: Convert to fraction form
    278,679,251.70/418,018,877.55 = 186,846,246.90/x
  3. Step 3: Cross multiply
    278,679,251.70x = 418,018,877.55 × 186,846,246.90
  4. Step 4: Simplify right side
    278,679,251.70x = 78,105,258,403,568,176
  5. Step 5: Solve for x
    x = 78,105,258,403,568,176/278,679,251.70
  6. Step 6: Final answer
    x = 280,269,370.35

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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.