Home / 38,961,879.51-53,767,456.71-21,558,958.23

Finding the Fourth Proportional to 38,961,879.51, 53,767,456.71 and 21,558,958.23

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Solution

The fourth proportional to 38,961,879.51, 53,767,456.71 and 21,558,958.23 is: 29,751,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961,879.51 : 53,767,456.71 = 21,558,958.23 : x
  2. Step 2: Convert to fraction form
    38,961,879.51/53,767,456.71 = 21,558,958.23/x
  3. Step 3: Cross multiply
    38,961,879.51x = 53,767,456.71 × 21,558,958.23
  4. Step 4: Simplify right side
    38,961,879.51x = 1,159,170,353,344,223.25
  5. Step 5: Solve for x
    x = 1,159,170,353,344,223.25/38,961,879.51
  6. Step 6: Final answer
    x = 29,751,397.21

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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.