Home / 20,479,157.24-28,260,697.38-11,311,603.16

Finding the Fourth Proportional to 20,479,157.24, 28,260,697.38 and 11,311,603.16

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Solution

The fourth proportional to 20,479,157.24, 28,260,697.38 and 11,311,603.16 is: 15,609,714.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479,157.24 : 28,260,697.38 = 11,311,603.16 : x
  2. Step 2: Convert to fraction form
    20,479,157.24/28,260,697.38 = 11,311,603.16/x
  3. Step 3: Cross multiply
    20,479,157.24x = 28,260,697.38 × 11,311,603.16
  4. Step 4: Simplify right side
    20,479,157.24x = 319,673,793,787,411.69
  5. Step 5: Solve for x
    x = 319,673,793,787,411.69/20,479,157.24
  6. Step 6: Final answer
    x = 15,609,714.31

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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.