Home / 127,770,121.88-176,322,768.19-72,771,095.96

Finding the Fourth Proportional to 127,770,121.88, 176,322,768.19 and 72,771,095.96

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Solution

The fourth proportional to 127,770,121.88, 176,322,768.19 and 72,771,095.96 is: 100,424,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,770,121.88 : 176,322,768.19 = 72,771,095.96 : x
  2. Step 2: Convert to fraction form
    127,770,121.88/176,322,768.19 = 72,771,095.96/x
  3. Step 3: Cross multiply
    127,770,121.88x = 176,322,768.19 × 72,771,095.96
  4. Step 4: Simplify right side
    127,770,121.88x = 12,831,201,083,887,324
  5. Step 5: Solve for x
    x = 12,831,201,083,887,324/127,770,121.88
  6. Step 6: Final answer
    x = 100,424,112.42

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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.