Home / 81,445,586.54-112,289,414.54-52,751,381.36

Finding the Fourth Proportional to 81,445,586.54, 112,289,414.54 and 52,751,381.36

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Solution

The fourth proportional to 81,445,586.54, 112,289,414.54 and 52,751,381.36 is: 72,728,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,445,586.54 : 112,289,414.54 = 52,751,381.36 : x
  2. Step 2: Convert to fraction form
    81,445,586.54/112,289,414.54 = 52,751,381.36/x
  3. Step 3: Cross multiply
    81,445,586.54x = 112,289,414.54 × 52,751,381.36
  4. Step 4: Simplify right side
    81,445,586.54x = 5,923,421,728,265,464
  5. Step 5: Solve for x
    x = 5,923,421,728,265,464/81,445,586.54
  6. Step 6: Final answer
    x = 72,728,578.43

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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.