Home / 287,558,906.62-430,899,401.64-170,744,221.82

Finding the Fourth Proportional to 287,558,906.62, 430,899,401.64 and 170,744,221.82

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Solution

The fourth proportional to 287,558,906.62, 430,899,401.64 and 170,744,221.82 is: 255,855,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,558,906.62 : 430,899,401.64 = 170,744,221.82 : x
  2. Step 2: Convert to fraction form
    287,558,906.62/430,899,401.64 = 170,744,221.82/x
  3. Step 3: Cross multiply
    287,558,906.62x = 430,899,401.64 × 170,744,221.82
  4. Step 4: Simplify right side
    287,558,906.62x = 73,573,583,015,725,424
  5. Step 5: Solve for x
    x = 73,573,583,015,725,424/287,558,906.62
  6. Step 6: Final answer
    x = 255,855,691.90

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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.