Home / 18,120,928.44-25,006,884.76-9,972,166.44

Finding the Fourth Proportional to 18,120,928.44, 25,006,884.76 and 9,972,166.44

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Solution

The fourth proportional to 18,120,928.44, 25,006,884.76 and 9,972,166.44 is: 13,761,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,928.44 : 25,006,884.76 = 9,972,166.44 : x
  2. Step 2: Convert to fraction form
    18,120,928.44/25,006,884.76 = 9,972,166.44/x
  3. Step 3: Cross multiply
    18,120,928.44x = 25,006,884.76 × 9,972,166.44
  4. Step 4: Simplify right side
    18,120,928.44x = 249,372,816,972,619.47
  5. Step 5: Solve for x
    x = 249,372,816,972,619.47/18,120,928.44
  6. Step 6: Final answer
    x = 13,761,591.62

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1.5x scale

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.