Home / 20,160,305.70-30,240,458.55-11,090,379.30

Finding the Fourth Proportional to 20,160,305.70, 30,240,458.55 and 11,090,379.30

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Solution

The fourth proportional to 20,160,305.70, 30,240,458.55 and 11,090,379.30 is: 16,635,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,305.70 : 30,240,458.55 = 11,090,379.30 : x
  2. Step 2: Convert to fraction form
    20,160,305.70/30,240,458.55 = 11,090,379.30/x
  3. Step 3: Cross multiply
    20,160,305.70x = 30,240,458.55 × 11,090,379.30
  4. Step 4: Simplify right side
    20,160,305.70x = 335,378,155,525,428.06
  5. Step 5: Solve for x
    x = 335,378,155,525,428.06/20,160,305.70
  6. Step 6: Final answer
    x = 16,635,568.95

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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.