Home / 363,425,998.10-545,138,997.15-218,307,175.70

Finding the Fourth Proportional to 363,425,998.10, 545,138,997.15 and 218,307,175.70

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Solution

The fourth proportional to 363,425,998.10, 545,138,997.15 and 218,307,175.70 is: 327,460,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,425,998.10 : 545,138,997.15 = 218,307,175.70 : x
  2. Step 2: Convert to fraction form
    363,425,998.10/545,138,997.15 = 218,307,175.70/x
  3. Step 3: Cross multiply
    363,425,998.10x = 545,138,997.15 × 218,307,175.70
  4. Step 4: Simplify right side
    363,425,998.10x = 119,007,754,831,746,832
  5. Step 5: Solve for x
    x = 119,007,754,831,746,832/363,425,998.10
  6. Step 6: Final answer
    x = 327,460,763.55

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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.