Home / 20,384,018.70-30,576,028.05-18,825,125.10

Finding the Fourth Proportional to 20,384,018.70, 30,576,028.05 and 18,825,125.10

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Solution

The fourth proportional to 20,384,018.70, 30,576,028.05 and 18,825,125.10 is: 28,237,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384,018.70 : 30,576,028.05 = 18,825,125.10 : x
  2. Step 2: Convert to fraction form
    20,384,018.70/30,576,028.05 = 18,825,125.10/x
  3. Step 3: Cross multiply
    20,384,018.70x = 30,576,028.05 × 18,825,125.10
  4. Step 4: Simplify right side
    20,384,018.70x = 575,597,553,102,359.12
  5. Step 5: Solve for x
    x = 575,597,553,102,359.12/20,384,018.70
  6. Step 6: Final answer
    x = 28,237,687.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.