Home / 15,862,942.75-21,890,992.22-8,619,598.75

Finding the Fourth Proportional to 15,862,942.75, 21,890,992.22 and 8,619,598.75

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Solution

The fourth proportional to 15,862,942.75, 21,890,992.22 and 8,619,598.75 is: 11,895,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862,942.75 : 21,890,992.22 = 8,619,598.75 : x
  2. Step 2: Convert to fraction form
    15,862,942.75/21,890,992.22 = 8,619,598.75/x
  3. Step 3: Cross multiply
    15,862,942.75x = 21,890,992.22 × 8,619,598.75
  4. Step 4: Simplify right side
    15,862,942.75x = 188,691,569,175,771.72
  5. Step 5: Solve for x
    x = 188,691,569,175,771.72/15,862,942.75
  6. Step 6: Final answer
    x = 11,895,117.58

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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.