Home / 215,247,712.80-323,721,874.80-193,139,767.20

Finding the Fourth Proportional to 215,247,712.80, 323,721,874.80 and 193,139,767.20

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Solution

The fourth proportional to 215,247,712.80, 323,721,874.80 and 193,139,767.20 is: 290,472,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,247,712.80 : 323,721,874.80 = 193,139,767.20 : x
  2. Step 2: Convert to fraction form
    215,247,712.80/323,721,874.80 = 193,139,767.20/x
  3. Step 3: Cross multiply
    215,247,712.80x = 323,721,874.80 × 193,139,767.20
  4. Step 4: Simplify right side
    215,247,712.80x = 62,523,567,536,419,544
  5. Step 5: Solve for x
    x = 62,523,567,536,419,544/215,247,712.80
  6. Step 6: Final answer
    x = 290,472,622.09

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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.