Home / 663,936,916.80-996,543,104.40-336,781,837.20

Finding the Fourth Proportional to 663,936,916.80, 996,543,104.40 and 336,781,837.20

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Solution

The fourth proportional to 663,936,916.80, 996,543,104.40 and 336,781,837.20 is: 505,496,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,936,916.80 : 996,543,104.40 = 336,781,837.20 : x
  2. Step 2: Convert to fraction form
    663,936,916.80/996,543,104.40 = 336,781,837.20/x
  3. Step 3: Cross multiply
    663,936,916.80x = 996,543,104.40 × 336,781,837.20
  4. Step 4: Simplify right side
    663,936,916.80x = 335,617,617,548,823,360
  5. Step 5: Solve for x
    x = 335,617,617,548,823,360/663,936,916.80
  6. Step 6: Final answer
    x = 505,496,243.78

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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.