Home / 206,374,842.64-309,552,061.50-76,972,370.80

Finding the Fourth Proportional to 206,374,842.64, 309,552,061.50 and 76,972,370.80

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Solution

The fourth proportional to 206,374,842.64, 309,552,061.50 and 76,972,370.80 is: 115,454,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,374,842.64 : 309,552,061.50 = 76,972,370.80 : x
  2. Step 2: Convert to fraction form
    206,374,842.64/309,552,061.50 = 76,972,370.80/x
  3. Step 3: Cross multiply
    206,374,842.64x = 309,552,061.50 × 76,972,370.80
  4. Step 4: Simplify right side
    206,374,842.64x = 23,826,956,059,682,404
  5. Step 5: Solve for x
    x = 23,826,956,059,682,404/206,374,842.64
  6. Step 6: Final answer
    x = 115,454,750.95

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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.