Home / 217,312,928.40-325,857,418.20-80,928,109.20

Finding the Fourth Proportional to 217,312,928.40, 325,857,418.20 and 80,928,109.20

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Solution

The fourth proportional to 217,312,928.40, 325,857,418.20 and 80,928,109.20 is: 121,350,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,312,928.40 : 325,857,418.20 = 80,928,109.20 : x
  2. Step 2: Convert to fraction form
    217,312,928.40/325,857,418.20 = 80,928,109.20/x
  3. Step 3: Cross multiply
    217,312,928.40x = 325,857,418.20 × 80,928,109.20
  4. Step 4: Simplify right side
    217,312,928.40x = 26,371,024,723,719,668
  5. Step 5: Solve for x
    x = 26,371,024,723,719,668/217,312,928.40
  6. Step 6: Final answer
    x = 121,350,464.13

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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.