Home / 80,941,769.76-111,736,120.16-51,612,525.12

Finding the Fourth Proportional to 80,941,769.76, 111,736,120.16 and 51,612,525.12

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Solution

The fourth proportional to 80,941,769.76, 111,736,120.16 and 51,612,525.12 is: 71,248,544.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941,769.76 : 111,736,120.16 = 51,612,525.12 : x
  2. Step 2: Convert to fraction form
    80,941,769.76/111,736,120.16 = 51,612,525.12/x
  3. Step 3: Cross multiply
    80,941,769.76x = 111,736,120.16 × 51,612,525.12
  4. Step 4: Simplify right side
    80,941,769.76x = 5,766,983,308,311,276
  5. Step 5: Solve for x
    x = 5,766,983,308,311,276/80,941,769.76
  6. Step 6: Final answer
    x = 71,248,544.79

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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.