Home / 217,511,019.72-300,193,872.66-130,596,490.44

Finding the Fourth Proportional to 217,511,019.72, 300,193,872.66 and 130,596,490.44

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Solution

The fourth proportional to 217,511,019.72, 300,193,872.66 and 130,596,490.44 is: 180,240,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,511,019.72 : 300,193,872.66 = 130,596,490.44 : x
  2. Step 2: Convert to fraction form
    217,511,019.72/300,193,872.66 = 130,596,490.44/x
  3. Step 3: Cross multiply
    217,511,019.72x = 300,193,872.66 × 130,596,490.44
  4. Step 4: Simplify right side
    217,511,019.72x = 39,204,266,220,988,272
  5. Step 5: Solve for x
    x = 39,204,266,220,988,272/217,511,019.72
  6. Step 6: Final answer
    x = 180,240,367.92

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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.