Home / 436,839,679.20-655,259,518.80-207,257,167.20

Finding the Fourth Proportional to 436,839,679.20, 655,259,518.80 and 207,257,167.20

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Solution

The fourth proportional to 436,839,679.20, 655,259,518.80 and 207,257,167.20 is: 310,885,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,839,679.20 : 655,259,518.80 = 207,257,167.20 : x
  2. Step 2: Convert to fraction form
    436,839,679.20/655,259,518.80 = 207,257,167.20/x
  3. Step 3: Cross multiply
    436,839,679.20x = 655,259,518.80 × 207,257,167.20
  4. Step 4: Simplify right side
    436,839,679.20x = 135,807,231,647,323,120
  5. Step 5: Solve for x
    x = 135,807,231,647,323,120/436,839,679.20
  6. Step 6: Final answer
    x = 310,885,750.80

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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.