Home / 217,312,979.40-325,857,494.70-80,928,160.20

Finding the Fourth Proportional to 217,312,979.40, 325,857,494.70 and 80,928,160.20

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Solution

The fourth proportional to 217,312,979.40, 325,857,494.70 and 80,928,160.20 is: 121,350,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,312,979.40 : 325,857,494.70 = 80,928,160.20 : x
  2. Step 2: Convert to fraction form
    217,312,979.40/325,857,494.70 = 80,928,160.20/x
  3. Step 3: Cross multiply
    217,312,979.40x = 325,857,494.70 × 80,928,160.20
  4. Step 4: Simplify right side
    217,312,979.40x = 26,371,047,533,452,252
  5. Step 5: Solve for x
    x = 26,371,047,533,452,252/217,312,979.40
  6. Step 6: Final answer
    x = 121,350,540.62

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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.