Home / 120,945,418.88-166,899,869.78-71,401,751.76

Finding the Fourth Proportional to 120,945,418.88, 166,899,869.78 and 71,401,751.76

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Solution

The fourth proportional to 120,945,418.88, 166,899,869.78 and 71,401,751.76 is: 98,531,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,945,418.88 : 166,899,869.78 = 71,401,751.76 : x
  2. Step 2: Convert to fraction form
    120,945,418.88/166,899,869.78 = 71,401,751.76/x
  3. Step 3: Cross multiply
    120,945,418.88x = 166,899,869.78 × 71,401,751.76
  4. Step 4: Simplify right side
    120,945,418.88x = 11,916,943,070,807,886
  5. Step 5: Solve for x
    x = 11,916,943,070,807,886/120,945,418.88
  6. Step 6: Final answer
    x = 98,531,578.80

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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.