Home / 315,217,344.20-472,826,016.30-194,284,992.20

Finding the Fourth Proportional to 315,217,344.20, 472,826,016.30 and 194,284,992.20

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Solution

The fourth proportional to 315,217,344.20, 472,826,016.30 and 194,284,992.20 is: 291,427,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,217,344.20 : 472,826,016.30 = 194,284,992.20 : x
  2. Step 2: Convert to fraction form
    315,217,344.20/472,826,016.30 = 194,284,992.20/x
  3. Step 3: Cross multiply
    315,217,344.20x = 472,826,016.30 × 194,284,992.20
  4. Step 4: Simplify right side
    315,217,344.20x = 91,862,998,888,802,576
  5. Step 5: Solve for x
    x = 91,862,998,888,802,576/315,217,344.20
  6. Step 6: Final answer
    x = 291,427,488.30

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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.