Home / 36,079,970.39-49,790,749.31-21,195,921.81

Finding the Fourth Proportional to 36,079,970.39, 49,790,749.31 and 21,195,921.81

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Solution

The fourth proportional to 36,079,970.39, 49,790,749.31 and 21,195,921.81 is: 29,250,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,079,970.39 : 49,790,749.31 = 21,195,921.81 : x
  2. Step 2: Convert to fraction form
    36,079,970.39/49,790,749.31 = 21,195,921.81/x
  3. Step 3: Cross multiply
    36,079,970.39x = 49,790,749.31 × 21,195,921.81
  4. Step 4: Simplify right side
    36,079,970.39x = 1,055,360,828,976,157.62
  5. Step 5: Solve for x
    x = 1,055,360,828,976,157.62/36,079,970.39
  6. Step 6: Final answer
    x = 29,250,601.30

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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.