Home / 13,631,031.96-18,807,469.02-8,331,385.56

Finding the Fourth Proportional to 13,631,031.96, 18,807,469.02 and 8,331,385.56

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Solution

The fourth proportional to 13,631,031.96, 18,807,469.02 and 8,331,385.56 is: 11,495,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,031.96 : 18,807,469.02 = 8,331,385.56 : x
  2. Step 2: Convert to fraction form
    13,631,031.96/18,807,469.02 = 8,331,385.56/x
  3. Step 3: Cross multiply
    13,631,031.96x = 18,807,469.02 × 8,331,385.56
  4. Step 4: Simplify right side
    13,631,031.96x = 156,692,275,813,375.34
  5. Step 5: Solve for x
    x = 156,692,275,813,375.34/13,631,031.96
  6. Step 6: Final answer
    x = 11,495,261.42

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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.