Home / 90,977,892.68-136,327,974.53-54,016,999.20

Finding the Fourth Proportional to 90,977,892.68, 136,327,974.53 and 54,016,999.20

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Solution

The fourth proportional to 90,977,892.68, 136,327,974.53 and 54,016,999.20 is: 80,943,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,977,892.68 : 136,327,974.53 = 54,016,999.20 : x
  2. Step 2: Convert to fraction form
    90,977,892.68/136,327,974.53 = 54,016,999.20/x
  3. Step 3: Cross multiply
    90,977,892.68x = 136,327,974.53 × 54,016,999.20
  4. Step 4: Simplify right side
    90,977,892.68x = 7,364,028,091,259,673
  5. Step 5: Solve for x
    x = 7,364,028,091,259,673/90,977,892.68
  6. Step 6: Final answer
    x = 80,943,049.72

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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.