Home / 396,263,238.69-546,849,855.42-217,663,641.15

Finding the Fourth Proportional to 396,263,238.69, 546,849,855.42 and 217,663,641.15

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Solution

The fourth proportional to 396,263,238.69, 546,849,855.42 and 217,663,641.15 is: 300,379,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,263,238.69 : 546,849,855.42 = 217,663,641.15 : x
  2. Step 2: Convert to fraction form
    396,263,238.69/546,849,855.42 = 217,663,641.15/x
  3. Step 3: Cross multiply
    396,263,238.69x = 546,849,855.42 × 217,663,641.15
  4. Step 4: Simplify right side
    396,263,238.69x = 119,029,330,691,979,936
  5. Step 5: Solve for x
    x = 119,029,330,691,979,936/396,263,238.69
  6. Step 6: Final answer
    x = 300,379,442.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.