Home / 40,073,648.89-55,301,741.91-21,738,934.39

Finding the Fourth Proportional to 40,073,648.89, 55,301,741.91 and 21,738,934.39

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Solution

The fourth proportional to 40,073,648.89, 55,301,741.91 and 21,738,934.39 is: 29,999,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,073,648.89 : 55,301,741.91 = 21,738,934.39 : x
  2. Step 2: Convert to fraction form
    40,073,648.89/55,301,741.91 = 21,738,934.39/x
  3. Step 3: Cross multiply
    40,073,648.89x = 55,301,741.91 × 21,738,934.39
  4. Step 4: Simplify right side
    40,073,648.89x = 1,202,200,939,034,203.25
  5. Step 5: Solve for x
    x = 1,202,200,939,034,203.25/40,073,648.89
  6. Step 6: Final answer
    x = 29,999,787.20

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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.