Home / 339,943,339.20-509,915,008.80-311,599,819.20

Finding the Fourth Proportional to 339,943,339.20, 509,915,008.80 and 311,599,819.20

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Solution

The fourth proportional to 339,943,339.20, 509,915,008.80 and 311,599,819.20 is: 467,399,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,943,339.20 : 509,915,008.80 = 311,599,819.20 : x
  2. Step 2: Convert to fraction form
    339,943,339.20/509,915,008.80 = 311,599,819.20/x
  3. Step 3: Cross multiply
    339,943,339.20x = 509,915,008.80 × 311,599,819.20
  4. Step 4: Simplify right side
    339,943,339.20x = 158,889,424,549,446,400
  5. Step 5: Solve for x
    x = 158,889,424,549,446,400/339,943,339.20
  6. Step 6: Final answer
    x = 467,399,728.80

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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.