Home / 81,151,761.66-121,746,305.25-26,566,107.90

Finding the Fourth Proportional to 81,151,761.66, 121,746,305.25 and 26,566,107.90

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Solution

The fourth proportional to 81,151,761.66, 121,746,305.25 and 26,566,107.90 is: 39,855,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,151,761.66 : 121,746,305.25 = 26,566,107.90 : x
  2. Step 2: Convert to fraction form
    81,151,761.66/121,746,305.25 = 26,566,107.90/x
  3. Step 3: Cross multiply
    81,151,761.66x = 121,746,305.25 × 26,566,107.90
  4. Step 4: Simplify right side
    81,151,761.66x = 3,234,325,481,697,836.50
  5. Step 5: Solve for x
    x = 3,234,325,481,697,836.50/81,151,761.66
  6. Step 6: Final answer
    x = 39,855,271.35

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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.