Home / 339,943,336.20-509,915,004.30-311,599,816.20

Finding the Fourth Proportional to 339,943,336.20, 509,915,004.30 and 311,599,816.20

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Solution

The fourth proportional to 339,943,336.20, 509,915,004.30 and 311,599,816.20 is: 467,399,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,943,336.20 : 509,915,004.30 = 311,599,816.20 : x
  2. Step 2: Convert to fraction form
    339,943,336.20/509,915,004.30 = 311,599,816.20/x
  3. Step 3: Cross multiply
    339,943,336.20x = 509,915,004.30 × 311,599,816.20
  4. Step 4: Simplify right side
    339,943,336.20x = 158,889,421,617,502,208
  5. Step 5: Solve for x
    x = 158,889,421,617,502,208/339,943,336.20
  6. Step 6: Final answer
    x = 467,399,724.30

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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.