Home / 80,372,285.40-120,558,428.10-29,247,661.20

Finding the Fourth Proportional to 80,372,285.40, 120,558,428.10 and 29,247,661.20

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Solution

The fourth proportional to 80,372,285.40, 120,558,428.10 and 29,247,661.20 is: 43,871,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372,285.40 : 120,558,428.10 = 29,247,661.20 : x
  2. Step 2: Convert to fraction form
    80,372,285.40/120,558,428.10 = 29,247,661.20/x
  3. Step 3: Cross multiply
    80,372,285.40x = 120,558,428.10 × 29,247,661.20
  4. Step 4: Simplify right side
    80,372,285.40x = 3,526,052,059,873,359.50
  5. Step 5: Solve for x
    x = 3,526,052,059,873,359.50/80,372,285.40
  6. Step 6: Final answer
    x = 43,871,491.80

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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.