Home / 379,082,605.38-523,154,203.34-211,822,926.78

Finding the Fourth Proportional to 379,082,605.38, 523,154,203.34 and 211,822,926.78

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Solution

The fourth proportional to 379,082,605.38, 523,154,203.34 and 211,822,926.78 is: 292,326,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,082,605.38 : 523,154,203.34 = 211,822,926.78 : x
  2. Step 2: Convert to fraction form
    379,082,605.38/523,154,203.34 = 211,822,926.78/x
  3. Step 3: Cross multiply
    379,082,605.38x = 523,154,203.34 × 211,822,926.78
  4. Step 4: Simplify right side
    379,082,605.38x = 110,816,054,508,738,048
  5. Step 5: Solve for x
    x = 110,816,054,508,738,048/379,082,605.38
  6. Step 6: Final answer
    x = 292,326,930.69

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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.