Home / 408,061,260.60-612,128,648.82-131,719,026.84

Finding the Fourth Proportional to 408,061,260.60, 612,128,648.82 and 131,719,026.84

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Solution

The fourth proportional to 408,061,260.60, 612,128,648.82 and 131,719,026.84 is: 197,590,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,061,260.60 : 612,128,648.82 = 131,719,026.84 : x
  2. Step 2: Convert to fraction form
    408,061,260.60/612,128,648.82 = 131,719,026.84/x
  3. Step 3: Cross multiply
    408,061,260.60x = 612,128,648.82 × 131,719,026.84
  4. Step 4: Simplify right side
    408,061,260.60x = 80,628,989,923,454,528
  5. Step 5: Solve for x
    x = 80,628,989,923,454,528/408,061,260.60
  6. Step 6: Final answer
    x = 197,590,405.43

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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.