Home / 25,278,960.96-34,920,678.96-20,115,716.40

Finding the Fourth Proportional to 25,278,960.96, 34,920,678.96 and 20,115,716.40

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Solution

The fourth proportional to 25,278,960.96, 34,920,678.96 and 20,115,716.40 is: 27,788,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278,960.96 : 34,920,678.96 = 20,115,716.40 : x
  2. Step 2: Convert to fraction form
    25,278,960.96/34,920,678.96 = 20,115,716.40/x
  3. Step 3: Cross multiply
    25,278,960.96x = 34,920,678.96 × 20,115,716.40
  4. Step 4: Simplify right side
    25,278,960.96x = 702,454,474,454,806.88
  5. Step 5: Solve for x
    x = 702,454,474,454,806.88/25,278,960.96
  6. Step 6: Final answer
    x = 27,788,107.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.