Home / 387,096,645.60-580,694,734.80-193,107,218.40

Finding the Fourth Proportional to 387,096,645.60, 580,694,734.80 and 193,107,218.40

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Solution

The fourth proportional to 387,096,645.60, 580,694,734.80 and 193,107,218.40 is: 289,685,654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,096,645.60 : 580,694,734.80 = 193,107,218.40 : x
  2. Step 2: Convert to fraction form
    387,096,645.60/580,694,734.80 = 193,107,218.40/x
  3. Step 3: Cross multiply
    387,096,645.60x = 580,694,734.80 × 193,107,218.40
  4. Step 4: Simplify right side
    387,096,645.60x = 112,136,344,976,753,680
  5. Step 5: Solve for x
    x = 112,136,344,976,753,680/387,096,645.60
  6. Step 6: Final answer
    x = 289,685,654.09

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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.