Home / 231,821,143.20-347,731,714.80-207,634,672.80

Finding the Fourth Proportional to 231,821,143.20, 347,731,714.80 and 207,634,672.80

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Solution

The fourth proportional to 231,821,143.20, 347,731,714.80 and 207,634,672.80 is: 311,452,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,821,143.20 : 347,731,714.80 = 207,634,672.80 : x
  2. Step 2: Convert to fraction form
    231,821,143.20/347,731,714.80 = 207,634,672.80/x
  3. Step 3: Cross multiply
    231,821,143.20x = 347,731,714.80 × 207,634,672.80
  4. Step 4: Simplify right side
    231,821,143.20x = 72,201,160,824,680,928
  5. Step 5: Solve for x
    x = 72,201,160,824,680,928/231,821,143.20
  6. Step 6: Final answer
    x = 311,452,009.20

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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.