Home / 207,368,015.20-311,052,022.80-71,008,079.20

Finding the Fourth Proportional to 207,368,015.20, 311,052,022.80 and 71,008,079.20

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Solution

The fourth proportional to 207,368,015.20, 311,052,022.80 and 71,008,079.20 is: 106,512,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,368,015.20 : 311,052,022.80 = 71,008,079.20 : x
  2. Step 2: Convert to fraction form
    207,368,015.20/311,052,022.80 = 71,008,079.20/x
  3. Step 3: Cross multiply
    207,368,015.20x = 311,052,022.80 × 71,008,079.20
  4. Step 4: Simplify right side
    207,368,015.20x = 22,087,206,670,302,608
  5. Step 5: Solve for x
    x = 22,087,206,670,302,608/207,368,015.20
  6. Step 6: Final answer
    x = 106,512,118.80

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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.