Home / 343,873,002.30-515,809,503.45-221,428,995.90

Finding the Fourth Proportional to 343,873,002.30, 515,809,503.45 and 221,428,995.90

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Solution

The fourth proportional to 343,873,002.30, 515,809,503.45 and 221,428,995.90 is: 332,143,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,873,002.30 : 515,809,503.45 = 221,428,995.90 : x
  2. Step 2: Convert to fraction form
    343,873,002.30/515,809,503.45 = 221,428,995.90/x
  3. Step 3: Cross multiply
    343,873,002.30x = 515,809,503.45 × 221,428,995.90
  4. Step 4: Simplify right side
    343,873,002.30x = 114,215,180,424,611,088
  5. Step 5: Solve for x
    x = 114,215,180,424,611,088/343,873,002.30
  6. Step 6: Final answer
    x = 332,143,493.85

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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.