Home / 20,543,288.23-28,349,747.70-11,251,442.67

Finding the Fourth Proportional to 20,543,288.23, 28,349,747.70 and 11,251,442.67

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Solution

The fourth proportional to 20,543,288.23, 28,349,747.70 and 11,251,442.67 is: 15,526,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543,288.23 : 28,349,747.70 = 11,251,442.67 : x
  2. Step 2: Convert to fraction form
    20,543,288.23/28,349,747.70 = 11,251,442.67/x
  3. Step 3: Cross multiply
    20,543,288.23x = 28,349,747.70 × 11,251,442.67
  4. Step 4: Simplify right side
    20,543,288.23x = 318,975,560,864,853
  5. Step 5: Solve for x
    x = 318,975,560,864,853/20,543,288.23
  6. Step 6: Final answer
    x = 15,526,996.33

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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.