Home / 20,985,743.75-31,440,252-15,214,183.34

Finding the Fourth Proportional to 20,985,743.75, 31,440,252 and 15,214,183.34

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Solution

The fourth proportional to 20,985,743.75, 31,440,252 and 15,214,183.34 is: 22,793,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985,743.75 : 31,440,252 = 15,214,183.34 : x
  2. Step 2: Convert to fraction form
    20,985,743.75/31,440,252 = 15,214,183.34/x
  3. Step 3: Cross multiply
    20,985,743.75x = 31,440,252 × 15,214,183.34
  4. Step 4: Simplify right side
    20,985,743.75x = 478,337,758,183,801.69
  5. Step 5: Solve for x
    x = 478,337,758,183,801.69/20,985,743.75
  6. Step 6: Final answer
    x = 22,793,462.26

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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.