Home / 80,632,340.19-111,281,167.44-49,288,736.28

Finding the Fourth Proportional to 80,632,340.19, 111,281,167.44 and 49,288,736.28

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Solution

The fourth proportional to 80,632,340.19, 111,281,167.44 and 49,288,736.28 is: 68,023,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,632,340.19 : 111,281,167.44 = 49,288,736.28 : x
  2. Step 2: Convert to fraction form
    80,632,340.19/111,281,167.44 = 49,288,736.28/x
  3. Step 3: Cross multiply
    80,632,340.19x = 111,281,167.44 × 49,288,736.28
  4. Step 4: Simplify right side
    80,632,340.19x = 5,484,908,115,297,987
  5. Step 5: Solve for x
    x = 5,484,908,115,297,987/80,632,340.19
  6. Step 6: Final answer
    x = 68,023,675.15

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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.