Home / 12,917,986.60-19,376,979.90-3,942,524.20

Finding the Fourth Proportional to 12,917,986.60, 19,376,979.90 and 3,942,524.20

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Solution

The fourth proportional to 12,917,986.60, 19,376,979.90 and 3,942,524.20 is: 5,913,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917,986.60 : 19,376,979.90 = 3,942,524.20 : x
  2. Step 2: Convert to fraction form
    12,917,986.60/19,376,979.90 = 3,942,524.20/x
  3. Step 3: Cross multiply
    12,917,986.60x = 19,376,979.90 × 3,942,524.20
  4. Step 4: Simplify right side
    12,917,986.60x = 76,394,212,178,663.58
  5. Step 5: Solve for x
    x = 76,394,212,178,663.58/12,917,986.60
  6. Step 6: Final answer
    x = 5,913,786.30

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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.