Home / 345,518,016.27-517,454,340.47-220,633,818.38

Finding the Fourth Proportional to 345,518,016.27, 517,454,340.47 and 220,633,818.38

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Solution

The fourth proportional to 345,518,016.27, 517,454,340.47 and 220,633,818.38 is: 330,425,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,518,016.27 : 517,454,340.47 = 220,633,818.38 : x
  2. Step 2: Convert to fraction form
    345,518,016.27/517,454,340.47 = 220,633,818.38/x
  3. Step 3: Cross multiply
    345,518,016.27x = 517,454,340.47 × 220,633,818.38
  4. Step 4: Simplify right side
    345,518,016.27x = 114,167,926,972,201,072
  5. Step 5: Solve for x
    x = 114,167,926,972,201,072/345,518,016.27
  6. Step 6: Final answer
    x = 330,425,394.90

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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.