Home / 121,932,015.26-168,266,347.53-66,177,436.42

Finding the Fourth Proportional to 121,932,015.26, 168,266,347.53 and 66,177,436.42

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Solution

The fourth proportional to 121,932,015.26, 168,266,347.53 and 66,177,436.42 is: 91,324,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,932,015.26 : 168,266,347.53 = 66,177,436.42 : x
  2. Step 2: Convert to fraction form
    121,932,015.26/168,266,347.53 = 66,177,436.42/x
  3. Step 3: Cross multiply
    121,932,015.26x = 168,266,347.53 × 66,177,436.42
  4. Step 4: Simplify right side
    121,932,015.26x = 11,135,435,514,450,868
  5. Step 5: Solve for x
    x = 11,135,435,514,450,868/121,932,015.26
  6. Step 6: Final answer
    x = 91,324,952.60

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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.