Home / 400,156,857-552,216,462.66-217,016,505

Finding the Fourth Proportional to 400,156,857, 552,216,462.66 and 217,016,505

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Solution

The fourth proportional to 400,156,857, 552,216,462.66 and 217,016,505 is: 299,482,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,857 : 552,216,462.66 = 217,016,505 : x
  2. Step 2: Convert to fraction form
    400,156,857/552,216,462.66 = 217,016,505/x
  3. Step 3: Cross multiply
    400,156,857x = 552,216,462.66 × 217,016,505
  4. Step 4: Simplify right side
    400,156,857x = 119,840,086,729,936,192
  5. Step 5: Solve for x
    x = 119,840,086,729,936,192/400,156,857
  6. Step 6: Final answer
    x = 299,482,776.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.