Home / 15,275,983.95-21,081,257.38-8,307,069.09

Finding the Fourth Proportional to 15,275,983.95, 21,081,257.38 and 8,307,069.09

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Solution

The fourth proportional to 15,275,983.95, 21,081,257.38 and 8,307,069.09 is: 11,463,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275,983.95 : 21,081,257.38 = 8,307,069.09 : x
  2. Step 2: Convert to fraction form
    15,275,983.95/21,081,257.38 = 8,307,069.09/x
  3. Step 3: Cross multiply
    15,275,983.95x = 21,081,257.38 × 8,307,069.09
  4. Step 4: Simplify right side
    15,275,983.95x = 175,123,461,594,380.34
  5. Step 5: Solve for x
    x = 175,123,461,594,380.34/15,275,983.95
  6. Step 6: Final answer
    x = 11,463,972.61

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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.