Home / 339,959,811.60-509,939,717.40-217,515,805.20

Finding the Fourth Proportional to 339,959,811.60, 509,939,717.40 and 217,515,805.20

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Solution

The fourth proportional to 339,959,811.60, 509,939,717.40 and 217,515,805.20 is: 326,273,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,959,811.60 : 509,939,717.40 = 217,515,805.20 : x
  2. Step 2: Convert to fraction form
    339,959,811.60/509,939,717.40 = 217,515,805.20/x
  3. Step 3: Cross multiply
    339,959,811.60x = 509,939,717.40 × 217,515,805.20
  4. Step 4: Simplify right side
    339,959,811.60x = 110,919,948,233,721,440
  5. Step 5: Solve for x
    x = 110,919,948,233,721,440/339,959,811.60
  6. Step 6: Final answer
    x = 326,273,707.80

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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.