Home / 327,784,480.80-491,676,721.20-85,447,384.80

Finding the Fourth Proportional to 327,784,480.80, 491,676,721.20 and 85,447,384.80

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Solution

The fourth proportional to 327,784,480.80, 491,676,721.20 and 85,447,384.80 is: 128,171,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,784,480.80 : 491,676,721.20 = 85,447,384.80 : x
  2. Step 2: Convert to fraction form
    327,784,480.80/491,676,721.20 = 85,447,384.80/x
  3. Step 3: Cross multiply
    327,784,480.80x = 491,676,721.20 × 85,447,384.80
  4. Step 4: Simplify right side
    327,784,480.80x = 42,012,489,993,578,712
  5. Step 5: Solve for x
    x = 42,012,489,993,578,712/327,784,480.80
  6. Step 6: Final answer
    x = 128,171,077.20

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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.