Home / 28,471,713.20-42,707,569.80-28,206,292.40

Finding the Fourth Proportional to 28,471,713.20, 42,707,569.80 and 28,206,292.40

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Solution

The fourth proportional to 28,471,713.20, 42,707,569.80 and 28,206,292.40 is: 42,309,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,713.20 : 42,707,569.80 = 28,206,292.40 : x
  2. Step 2: Convert to fraction form
    28,471,713.20/42,707,569.80 = 28,206,292.40/x
  3. Step 3: Cross multiply
    28,471,713.20x = 42,707,569.80 × 28,206,292.40
  4. Step 4: Simplify right side
    28,471,713.20x = 1,204,622,201,472,209.25
  5. Step 5: Solve for x
    x = 1,204,622,201,472,209.25/28,471,713.20
  6. Step 6: Final answer
    x = 42,309,438.60

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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.