Home / 321,647,948.16-482,675,988.47-137,416,812.29

Finding the Fourth Proportional to 321,647,948.16, 482,675,988.47 and 137,416,812.29

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Solution

The fourth proportional to 321,647,948.16, 482,675,988.47 and 137,416,812.29 is: 206,212,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,647,948.16 : 482,675,988.47 = 137,416,812.29 : x
  2. Step 2: Convert to fraction form
    321,647,948.16/482,675,988.47 = 137,416,812.29/x
  3. Step 3: Cross multiply
    321,647,948.16x = 482,675,988.47 × 137,416,812.29
  4. Step 4: Simplify right side
    321,647,948.16x = 66,327,795,704,472,192
  5. Step 5: Solve for x
    x = 66,327,795,704,472,192/321,647,948.16
  6. Step 6: Final answer
    x = 206,212,401.12

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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.