Home / 21,580,347.37-29,780,531.81-11,790,581.35

Finding the Fourth Proportional to 21,580,347.37, 29,780,531.81 and 11,790,581.35

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Solution

The fourth proportional to 21,580,347.37, 29,780,531.81 and 11,790,581.35 is: 16,270,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,347.37 : 29,780,531.81 = 11,790,581.35 : x
  2. Step 2: Convert to fraction form
    21,580,347.37/29,780,531.81 = 11,790,581.35/x
  3. Step 3: Cross multiply
    21,580,347.37x = 29,780,531.81 × 11,790,581.35
  4. Step 4: Simplify right side
    21,580,347.37x = 351,129,782,952,067.69
  5. Step 5: Solve for x
    x = 351,129,782,952,067.69/21,580,347.37
  6. Step 6: Final answer
    x = 16,270,812.37

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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.