Home / 99,731,936.80-149,597,905.20-67,399,328.80

Finding the Fourth Proportional to 99,731,936.80, 149,597,905.20 and 67,399,328.80

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Solution

The fourth proportional to 99,731,936.80, 149,597,905.20 and 67,399,328.80 is: 101,098,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,731,936.80 : 149,597,905.20 = 67,399,328.80 : x
  2. Step 2: Convert to fraction form
    99,731,936.80/149,597,905.20 = 67,399,328.80/x
  3. Step 3: Cross multiply
    99,731,936.80x = 149,597,905.20 × 67,399,328.80
  4. Step 4: Simplify right side
    99,731,936.80x = 10,082,798,400,366,028
  5. Step 5: Solve for x
    x = 10,082,798,400,366,028/99,731,936.80
  6. Step 6: Final answer
    x = 101,098,993.20

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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.