Home / 20,730,308.93-28,608,691.49-11,438,481.69

Finding the Fourth Proportional to 20,730,308.93, 28,608,691.49 and 11,438,481.69

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Solution

The fourth proportional to 20,730,308.93, 28,608,691.49 and 11,438,481.69 is: 15,785,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,308.93 : 28,608,691.49 = 11,438,481.69 : x
  2. Step 2: Convert to fraction form
    20,730,308.93/28,608,691.49 = 11,438,481.69/x
  3. Step 3: Cross multiply
    20,730,308.93x = 28,608,691.49 × 11,438,481.69
  4. Step 4: Simplify right side
    20,730,308.93x = 327,239,993,783,223.81
  5. Step 5: Solve for x
    x = 327,239,993,783,223.81/20,730,308.93
  6. Step 6: Final answer
    x = 15,785,582.11

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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.