Home / 399,420,904.40-598,235,561.40-327,757,288.40

Finding the Fourth Proportional to 399,420,904.40, 598,235,561.40 and 327,757,288.40

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Solution

The fourth proportional to 399,420,904.40, 598,235,561.40 and 327,757,288.40 is: 490,900,859.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,420,904.40 : 598,235,561.40 = 327,757,288.40 : x
  2. Step 2: Convert to fraction form
    399,420,904.40/598,235,561.40 = 327,757,288.40/x
  3. Step 3: Cross multiply
    399,420,904.40x = 598,235,561.40 × 327,757,288.40
  4. Step 4: Simplify right side
    399,420,904.40x = 196,076,065,428,915,680
  5. Step 5: Solve for x
    x = 196,076,065,428,915,680/399,420,904.40
  6. Step 6: Final answer
    x = 490,900,859.89

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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.