Home / 312,690,209.28-469,107,369.72-108,218,284.26

Finding the Fourth Proportional to 312,690,209.28, 469,107,369.72 and 108,218,284.26

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Solution

The fourth proportional to 312,690,209.28, 469,107,369.72 and 108,218,284.26 is: 162,352,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,690,209.28 : 469,107,369.72 = 108,218,284.26 : x
  2. Step 2: Convert to fraction form
    312,690,209.28/469,107,369.72 = 108,218,284.26/x
  3. Step 3: Cross multiply
    312,690,209.28x = 469,107,369.72 × 108,218,284.26
  4. Step 4: Simplify right side
    312,690,209.28x = 50,765,994,684,819,880
  5. Step 5: Solve for x
    x = 50,765,994,684,819,880/312,690,209.28
  6. Step 6: Final answer
    x = 162,352,364.03

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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.