Home / 339,943,338.70-509,915,008.05-311,599,818.70

Finding the Fourth Proportional to 339,943,338.70, 509,915,008.05 and 311,599,818.70

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Solution

The fourth proportional to 339,943,338.70, 509,915,008.05 and 311,599,818.70 is: 467,399,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,943,338.70 : 509,915,008.05 = 311,599,818.70 : x
  2. Step 2: Convert to fraction form
    339,943,338.70/509,915,008.05 = 311,599,818.70/x
  3. Step 3: Cross multiply
    339,943,338.70x = 509,915,008.05 × 311,599,818.70
  4. Step 4: Simplify right side
    339,943,338.70x = 158,889,424,060,789,024
  5. Step 5: Solve for x
    x = 158,889,424,060,789,024/339,943,338.70
  6. Step 6: Final answer
    x = 467,399,728.05

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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.