Home / 400,156,864.88-552,216,473.53-217,016,512.88

Finding the Fourth Proportional to 400,156,864.88, 552,216,473.53 and 217,016,512.88

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Solution

The fourth proportional to 400,156,864.88, 552,216,473.53 and 217,016,512.88 is: 299,482,787.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,864.88 : 552,216,473.53 = 217,016,512.88 : x
  2. Step 2: Convert to fraction form
    400,156,864.88/552,216,473.53 = 217,016,512.88/x
  3. Step 3: Cross multiply
    400,156,864.88x = 552,216,473.53 × 217,016,512.88
  4. Step 4: Simplify right side
    400,156,864.88x = 119,840,093,437,067,808
  5. Step 5: Solve for x
    x = 119,840,093,437,067,808/400,156,864.88
  6. Step 6: Final answer
    x = 299,482,787.77

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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.