Home / 20,648,590.20-30,972,829.50-7,694,445.87

Finding the Fourth Proportional to 20,648,590.20, 30,972,829.50 and 7,694,445.87

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Solution

The fourth proportional to 20,648,590.20, 30,972,829.50 and 7,694,445.87 is: 11,541,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648,590.20 : 30,972,829.50 = 7,694,445.87 : x
  2. Step 2: Convert to fraction form
    20,648,590.20/30,972,829.50 = 7,694,445.87/x
  3. Step 3: Cross multiply
    20,648,590.20x = 30,972,829.50 × 7,694,445.87
  4. Step 4: Simplify right side
    20,648,590.20x = 238,318,760,028,489.16
  5. Step 5: Solve for x
    x = 238,318,760,028,489.16/20,648,590.20
  6. Step 6: Final answer
    x = 11,541,648.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.