Home / 217,313,098.40-325,857,673.20-80,928,279.20

Finding the Fourth Proportional to 217,313,098.40, 325,857,673.20 and 80,928,279.20

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Solution

The fourth proportional to 217,313,098.40, 325,857,673.20 and 80,928,279.20 is: 121,350,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,313,098.40 : 325,857,673.20 = 80,928,279.20 : x
  2. Step 2: Convert to fraction form
    217,313,098.40/325,857,673.20 = 80,928,279.20/x
  3. Step 3: Cross multiply
    217,313,098.40x = 325,857,673.20 × 80,928,279.20
  4. Step 4: Simplify right side
    217,313,098.40x = 26,371,100,756,191,956
  5. Step 5: Solve for x
    x = 26,371,100,756,191,956/217,313,098.40
  6. Step 6: Final answer
    x = 121,350,719.08

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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.