Home / 231,821,107.20-347,731,660.80-207,634,636.80

Finding the Fourth Proportional to 231,821,107.20, 347,731,660.80 and 207,634,636.80

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Solution

The fourth proportional to 231,821,107.20, 347,731,660.80 and 207,634,636.80 is: 311,451,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,821,107.20 : 347,731,660.80 = 207,634,636.80 : x
  2. Step 2: Convert to fraction form
    231,821,107.20/347,731,660.80 = 207,634,636.80/x
  3. Step 3: Cross multiply
    231,821,107.20x = 347,731,660.80 × 207,634,636.80
  4. Step 4: Simplify right side
    231,821,107.20x = 72,201,137,094,068,800
  5. Step 5: Solve for x
    x = 72,201,137,094,068,800/231,821,107.20
  6. Step 6: Final answer
    x = 311,451,955.20

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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.