Home / 221,129,600.80-331,694,401.20-98,307,680.80

Finding the Fourth Proportional to 221,129,600.80, 331,694,401.20 and 98,307,680.80

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Solution

The fourth proportional to 221,129,600.80, 331,694,401.20 and 98,307,680.80 is: 147,461,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,129,600.80 : 331,694,401.20 = 98,307,680.80 : x
  2. Step 2: Convert to fraction form
    221,129,600.80/331,694,401.20 = 98,307,680.80/x
  3. Step 3: Cross multiply
    221,129,600.80x = 331,694,401.20 × 98,307,680.80
  4. Step 4: Simplify right side
    221,129,600.80x = 32,608,107,316,316,736
  5. Step 5: Solve for x
    x = 32,608,107,316,316,736/221,129,600.80
  6. Step 6: Final answer
    x = 147,461,521.20

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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.