Home / 396,566,123.87-547,273,569.52-217,946,771.08

Finding the Fourth Proportional to 396,566,123.87, 547,273,569.52 and 217,946,771.08

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Solution

The fourth proportional to 396,566,123.87, 547,273,569.52 and 217,946,771.08 is: 300,773,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,566,123.87 : 547,273,569.52 = 217,946,771.08 : x
  2. Step 2: Convert to fraction form
    396,566,123.87/547,273,569.52 = 217,946,771.08/x
  3. Step 3: Cross multiply
    396,566,123.87x = 547,273,569.52 × 217,946,771.08
  4. Step 4: Simplify right side
    396,566,123.87x = 119,276,507,373,214,144
  5. Step 5: Solve for x
    x = 119,276,507,373,214,144/396,566,123.87
  6. Step 6: Final answer
    x = 300,773,314.19

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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.