Home / 18,120,944.76-25,006,907.40-9,972,182.76

Finding the Fourth Proportional to 18,120,944.76, 25,006,907.40 and 9,972,182.76

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Solution

The fourth proportional to 18,120,944.76, 25,006,907.40 and 9,972,182.76 is: 13,761,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,944.76 : 25,006,907.40 = 9,972,182.76 : x
  2. Step 2: Convert to fraction form
    18,120,944.76/25,006,907.40 = 9,972,182.76/x
  3. Step 3: Cross multiply
    18,120,944.76x = 25,006,907.40 × 9,972,182.76
  4. Step 4: Simplify right side
    18,120,944.76x = 249,373,450,855,196.41
  5. Step 5: Solve for x
    x = 249,373,450,855,196.41/18,120,944.76
  6. Step 6: Final answer
    x = 13,761,614.21

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Double scale
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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.