Home / 279,794,645.40-419,691,968.10-221,344,008.60

Finding the Fourth Proportional to 279,794,645.40, 419,691,968.10 and 221,344,008.60

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Solution

The fourth proportional to 279,794,645.40, 419,691,968.10 and 221,344,008.60 is: 332,016,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,794,645.40 : 419,691,968.10 = 221,344,008.60 : x
  2. Step 2: Convert to fraction form
    279,794,645.40/419,691,968.10 = 221,344,008.60/x
  3. Step 3: Cross multiply
    279,794,645.40x = 419,691,968.10 × 221,344,008.60
  4. Step 4: Simplify right side
    279,794,645.40x = 92,896,302,596,477,328
  5. Step 5: Solve for x
    x = 92,896,302,596,477,328/279,794,645.40
  6. Step 6: Final answer
    x = 332,016,012.90

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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.