Home / 15,289,857.35-21,100,006.62-8,414,339.42

Finding the Fourth Proportional to 15,289,857.35, 21,100,006.62 and 8,414,339.42

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Solution

The fourth proportional to 15,289,857.35, 21,100,006.62 and 8,414,339.42 is: 11,611,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289,857.35 : 21,100,006.62 = 8,414,339.42 : x
  2. Step 2: Convert to fraction form
    15,289,857.35/21,100,006.62 = 8,414,339.42/x
  3. Step 3: Cross multiply
    15,289,857.35x = 21,100,006.62 × 8,414,339.42
  4. Step 4: Simplify right side
    15,289,857.35x = 177,542,617,359,426.91
  5. Step 5: Solve for x
    x = 177,542,617,359,426.91/15,289,857.35
  6. Step 6: Final answer
    x = 11,611,790.31

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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.