Home / 217,038,863.40-325,936,208.70-115,002,191.40

Finding the Fourth Proportional to 217,038,863.40, 325,936,208.70 and 115,002,191.40

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Solution

The fourth proportional to 217,038,863.40, 325,936,208.70 and 115,002,191.40 is: 172,703,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,038,863.40 : 325,936,208.70 = 115,002,191.40 : x
  2. Step 2: Convert to fraction form
    217,038,863.40/325,936,208.70 = 115,002,191.40/x
  3. Step 3: Cross multiply
    217,038,863.40x = 325,936,208.70 × 115,002,191.40
  4. Step 4: Simplify right side
    217,038,863.40x = 37,483,378,257,107,744
  5. Step 5: Solve for x
    x = 37,483,378,257,107,744/217,038,863.40
  6. Step 6: Final answer
    x = 172,703,531.85

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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.