Home / 108,491,049.76-149,756,935.44-71,833,430.56

Finding the Fourth Proportional to 108,491,049.76, 149,756,935.44 and 71,833,430.56

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Solution

The fourth proportional to 108,491,049.76, 149,756,935.44 and 71,833,430.56 is: 99,156,146.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,491,049.76 : 149,756,935.44 = 71,833,430.56 : x
  2. Step 2: Convert to fraction form
    108,491,049.76/149,756,935.44 = 71,833,430.56/x
  3. Step 3: Cross multiply
    108,491,049.76x = 149,756,935.44 × 71,833,430.56
  4. Step 4: Simplify right side
    108,491,049.76x = 10,757,554,422,807,644
  5. Step 5: Solve for x
    x = 10,757,554,422,807,644/108,491,049.76
  6. Step 6: Final answer
    x = 99,156,146.49

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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.