Home / 72,764,231.40-109,146,347.10-65,589,777.90

Finding the Fourth Proportional to 72,764,231.40, 109,146,347.10 and 65,589,777.90

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Solution

The fourth proportional to 72,764,231.40, 109,146,347.10 and 65,589,777.90 is: 98,384,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764,231.40 : 109,146,347.10 = 65,589,777.90 : x
  2. Step 2: Convert to fraction form
    72,764,231.40/109,146,347.10 = 65,589,777.90/x
  3. Step 3: Cross multiply
    72,764,231.40x = 109,146,347.10 × 65,589,777.90
  4. Step 4: Simplify right side
    72,764,231.40x = 7,158,884,664,885,309
  5. Step 5: Solve for x
    x = 7,158,884,664,885,309/72,764,231.40
  6. Step 6: Final answer
    x = 98,384,666.85

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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.