Home / 281,017,570.92-421,768,494.13-194,816,512.11

Finding the Fourth Proportional to 281,017,570.92, 421,768,494.13 and 194,816,512.11

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Solution

The fourth proportional to 281,017,570.92, 421,768,494.13 and 194,816,512.11 is: 292,392,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,017,570.92 : 421,768,494.13 = 194,816,512.11 : x
  2. Step 2: Convert to fraction form
    281,017,570.92/421,768,494.13 = 194,816,512.11/x
  3. Step 3: Cross multiply
    281,017,570.92x = 421,768,494.13 × 194,816,512.11
  4. Step 4: Simplify right side
    281,017,570.92x = 82,167,466,944,293,616
  5. Step 5: Solve for x
    x = 82,167,466,944,293,616/281,017,570.92
  6. Step 6: Final answer
    x = 292,392,631.09

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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.