Home / 217,312,971.40-325,857,482.70-80,928,152.20

Finding the Fourth Proportional to 217,312,971.40, 325,857,482.70 and 80,928,152.20

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Solution

The fourth proportional to 217,312,971.40, 325,857,482.70 and 80,928,152.20 is: 121,350,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,312,971.40 : 325,857,482.70 = 80,928,152.20 : x
  2. Step 2: Convert to fraction form
    217,312,971.40/325,857,482.70 = 80,928,152.20/x
  3. Step 3: Cross multiply
    217,312,971.40x = 325,857,482.70 × 80,928,152.20
  4. Step 4: Simplify right side
    217,312,971.40x = 26,371,043,955,454,468
  5. Step 5: Solve for x
    x = 26,371,043,955,454,468/217,312,971.40
  6. Step 6: Final answer
    x = 121,350,528.62

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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.