Home / 13,222,678.70-18,246,407-7,342,010.66

Finding the Fourth Proportional to 13,222,678.70, 18,246,407 and 7,342,010.66

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Solution

The fourth proportional to 13,222,678.70, 18,246,407 and 7,342,010.66 is: 10,131,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222,678.70 : 18,246,407 = 7,342,010.66 : x
  2. Step 2: Convert to fraction form
    13,222,678.70/18,246,407 = 7,342,010.66/x
  3. Step 3: Cross multiply
    13,222,678.70x = 18,246,407 × 7,342,010.66
  4. Step 4: Simplify right side
    13,222,678.70x = 133,965,314,700,698.62
  5. Step 5: Solve for x
    x = 133,965,314,700,698.62/13,222,678.70
  6. Step 6: Final answer
    x = 10,131,480.75

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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.