Home / 20,649,748.28-28,497,348.66-11,358,036.98

Finding the Fourth Proportional to 20,649,748.28, 28,497,348.66 and 11,358,036.98

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Solution

The fourth proportional to 20,649,748.28, 28,497,348.66 and 11,358,036.98 is: 15,674,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,748.28 : 28,497,348.66 = 11,358,036.98 : x
  2. Step 2: Convert to fraction form
    20,649,748.28/28,497,348.66 = 11,358,036.98/x
  3. Step 3: Cross multiply
    20,649,748.28x = 28,497,348.66 × 11,358,036.98
  4. Step 4: Simplify right side
    20,649,748.28x = 323,673,939,912,233.44
  5. Step 5: Solve for x
    x = 323,673,939,912,233.44/20,649,748.28
  6. Step 6: Final answer
    x = 15,674,473.87

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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.