Home / 80,912,935.44-111,564,441.72-65,395,033.20

Finding the Fourth Proportional to 80,912,935.44, 111,564,441.72 and 65,395,033.20

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Solution

The fourth proportional to 80,912,935.44, 111,564,441.72 and 65,395,033.20 is: 90,168,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,912,935.44 : 111,564,441.72 = 65,395,033.20 : x
  2. Step 2: Convert to fraction form
    80,912,935.44/111,564,441.72 = 65,395,033.20/x
  3. Step 3: Cross multiply
    80,912,935.44x = 111,564,441.72 × 65,395,033.20
  4. Step 4: Simplify right side
    80,912,935.44x = 7,295,760,370,218,865
  5. Step 5: Solve for x
    x = 7,295,760,370,218,865/80,912,935.44
  6. Step 6: Final answer
    x = 90,168,034.70

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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.