Home / 20,985,743.88-31,440,252.19-15,214,183.47

Finding the Fourth Proportional to 20,985,743.88, 31,440,252.19 and 15,214,183.47

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Solution

The fourth proportional to 20,985,743.88, 31,440,252.19 and 15,214,183.47 is: 22,793,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985,743.88 : 31,440,252.19 = 15,214,183.47 : x
  2. Step 2: Convert to fraction form
    20,985,743.88/31,440,252.19 = 15,214,183.47/x
  3. Step 3: Cross multiply
    20,985,743.88x = 31,440,252.19 × 15,214,183.47
  4. Step 4: Simplify right side
    20,985,743.88x = 478,337,764,966,492.56
  5. Step 5: Solve for x
    x = 478,337,764,966,492.56/20,985,743.88
  6. Step 6: Final answer
    x = 22,793,462.45

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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.