Home / 231,818,807.70-347,728,211.55-207,632,337.30

Finding the Fourth Proportional to 231,818,807.70, 347,728,211.55 and 207,632,337.30

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Solution

The fourth proportional to 231,818,807.70, 347,728,211.55 and 207,632,337.30 is: 311,448,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,818,807.70 : 347,728,211.55 = 207,632,337.30 : x
  2. Step 2: Convert to fraction form
    231,818,807.70/347,728,211.55 = 207,632,337.30/x
  3. Step 3: Cross multiply
    231,818,807.70x = 347,728,211.55 × 207,632,337.30
  4. Step 4: Simplify right side
    231,818,807.70x = 72,199,621,309,275,360
  5. Step 5: Solve for x
    x = 72,199,621,309,275,360/231,818,807.70
  6. Step 6: Final answer
    x = 311,448,505.95

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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.