Home / 20,590,743.71-30,885,980.92-5,237,902.55

Finding the Fourth Proportional to 20,590,743.71, 30,885,980.92 and 5,237,902.55

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Solution

The fourth proportional to 20,590,743.71, 30,885,980.92 and 5,237,902.55 is: 7,856,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590,743.71 : 30,885,980.92 = 5,237,902.55 : x
  2. Step 2: Convert to fraction form
    20,590,743.71/30,885,980.92 = 5,237,902.55/x
  3. Step 3: Cross multiply
    20,590,743.71x = 30,885,980.92 × 5,237,902.55
  4. Step 4: Simplify right side
    20,590,743.71x = 161,777,758,284,239.56
  5. Step 5: Solve for x
    x = 161,777,758,284,239.56/20,590,743.71
  6. Step 6: Final answer
    x = 7,856,819.58

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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.