Home / 68,015,003.80-102,022,505.70-65,369,608.60

Finding the Fourth Proportional to 68,015,003.80, 102,022,505.70 and 65,369,608.60

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Solution

The fourth proportional to 68,015,003.80, 102,022,505.70 and 65,369,608.60 is: 98,054,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,015,003.80 : 102,022,505.70 = 65,369,608.60 : x
  2. Step 2: Convert to fraction form
    68,015,003.80/102,022,505.70 = 65,369,608.60/x
  3. Step 3: Cross multiply
    68,015,003.80x = 102,022,505.70 × 65,369,608.60
  4. Step 4: Simplify right side
    68,015,003.80x = 6,669,171,266,000,269
  5. Step 5: Solve for x
    x = 6,669,171,266,000,269/68,015,003.80
  6. Step 6: Final answer
    x = 98,054,412.90

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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.