Home / 321,656,923.20-482,485,384.80-268,087,670.40

Finding the Fourth Proportional to 321,656,923.20, 482,485,384.80 and 268,087,670.40

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Solution

The fourth proportional to 321,656,923.20, 482,485,384.80 and 268,087,670.40 is: 402,131,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,656,923.20 : 482,485,384.80 = 268,087,670.40 : x
  2. Step 2: Convert to fraction form
    321,656,923.20/482,485,384.80 = 268,087,670.40/x
  3. Step 3: Cross multiply
    321,656,923.20x = 482,485,384.80 × 268,087,670.40
  4. Step 4: Simplify right side
    321,656,923.20x = 129,348,382,813,079,568
  5. Step 5: Solve for x
    x = 129,348,382,813,079,568/321,656,923.20
  6. Step 6: Final answer
    x = 402,131,505.60

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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.