Home / 339,696,961.11-509,461,198.43-145,586,364.39

Finding the Fourth Proportional to 339,696,961.11, 509,461,198.43 and 145,586,364.39

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Solution

The fourth proportional to 339,696,961.11, 509,461,198.43 and 145,586,364.39 is: 218,343,441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,696,961.11 : 509,461,198.43 = 145,586,364.39 : x
  2. Step 2: Convert to fraction form
    339,696,961.11/509,461,198.43 = 145,586,364.39/x
  3. Step 3: Cross multiply
    339,696,961.11x = 509,461,198.43 × 145,586,364.39
  4. Step 4: Simplify right side
    339,696,961.11x = 74,170,603,676,468,144
  5. Step 5: Solve for x
    x = 74,170,603,676,468,144/339,696,961.11
  6. Step 6: Final answer
    x = 218,343,441.86

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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.