Home / 20,649,987.18-28,497,672.72-11,357,949.06

Finding the Fourth Proportional to 20,649,987.18, 28,497,672.72 and 11,357,949.06

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Solution

The fourth proportional to 20,649,987.18, 28,497,672.72 and 11,357,949.06 is: 15,674,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,987.18 : 28,497,672.72 = 11,357,949.06 : x
  2. Step 2: Convert to fraction form
    20,649,987.18/28,497,672.72 = 11,357,949.06/x
  3. Step 3: Cross multiply
    20,649,987.18x = 28,497,672.72 × 11,357,949.06
  4. Step 4: Simplify right side
    20,649,987.18x = 323,675,115,082,311.62
  5. Step 5: Solve for x
    x = 323,675,115,082,311.62/20,649,987.18
  6. Step 6: Final answer
    x = 15,674,349.44

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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.