Home / 321,126,580.80-443,140,485.12-181,894,550.40

Finding the Fourth Proportional to 321,126,580.80, 443,140,485.12 and 181,894,550.40

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Solution

The fourth proportional to 321,126,580.80, 443,140,485.12 and 181,894,550.40 is: 251,006,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,126,580.80 : 443,140,485.12 = 181,894,550.40 : x
  2. Step 2: Convert to fraction form
    321,126,580.80/443,140,485.12 = 181,894,550.40/x
  3. Step 3: Cross multiply
    321,126,580.80x = 443,140,485.12 × 181,894,550.40
  4. Step 4: Simplify right side
    321,126,580.80x = 80,604,839,304,940,288
  5. Step 5: Solve for x
    x = 80,604,839,304,940,288/321,126,580.80
  6. Step 6: Final answer
    x = 251,006,438.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.