Home / 99,691,243.30-149,284,922.55-79,535,851.30

Finding the Fourth Proportional to 99,691,243.30, 149,284,922.55 and 79,535,851.30

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Solution

The fourth proportional to 99,691,243.30, 149,284,922.55 and 79,535,851.30 is: 119,102,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,691,243.30 : 149,284,922.55 = 79,535,851.30 : x
  2. Step 2: Convert to fraction form
    99,691,243.30/149,284,922.55 = 79,535,851.30/x
  3. Step 3: Cross multiply
    99,691,243.30x = 149,284,922.55 × 79,535,851.30
  4. Step 4: Simplify right side
    99,691,243.30x = 11,873,503,401,268,818
  5. Step 5: Solve for x
    x = 11,873,503,401,268,818/99,691,243.30
  6. Step 6: Final answer
    x = 119,102,771.80

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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.