Home / 339,959,816.10-509,939,724.15-217,515,809.70

Finding the Fourth Proportional to 339,959,816.10, 509,939,724.15 and 217,515,809.70

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Solution

The fourth proportional to 339,959,816.10, 509,939,724.15 and 217,515,809.70 is: 326,273,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,959,816.10 : 509,939,724.15 = 217,515,809.70 : x
  2. Step 2: Convert to fraction form
    339,959,816.10/509,939,724.15 = 217,515,809.70/x
  3. Step 3: Cross multiply
    339,959,816.10x = 509,939,724.15 × 217,515,809.70
  4. Step 4: Simplify right side
    339,959,816.10x = 110,919,951,996,681,888
  5. Step 5: Solve for x
    x = 110,919,951,996,681,888/339,959,816.10
  6. Step 6: Final answer
    x = 326,273,714.55

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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.