Home / 442,601,920.80-663,336,010.80-339,856,660.80

Finding the Fourth Proportional to 442,601,920.80, 663,336,010.80 and 339,856,660.80

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Solution

The fourth proportional to 442,601,920.80, 663,336,010.80 and 339,856,660.80 is: 509,349,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,601,920.80 : 663,336,010.80 = 339,856,660.80 : x
  2. Step 2: Convert to fraction form
    442,601,920.80/663,336,010.80 = 339,856,660.80/x
  3. Step 3: Cross multiply
    442,601,920.80x = 663,336,010.80 × 339,856,660.80
  4. Step 4: Simplify right side
    442,601,920.80x = 225,439,161,618,880,736
  5. Step 5: Solve for x
    x = 225,439,161,618,880,736/442,601,920.80
  6. Step 6: Final answer
    x = 509,349,713.65

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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.