Home / 138,347,745.52-190,923,949.02-75,627,309.64

Finding the Fourth Proportional to 138,347,745.52, 190,923,949.02 and 75,627,309.64

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Solution

The fourth proportional to 138,347,745.52, 190,923,949.02 and 75,627,309.64 is: 104,367,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,347,745.52 : 190,923,949.02 = 75,627,309.64 : x
  2. Step 2: Convert to fraction form
    138,347,745.52/190,923,949.02 = 75,627,309.64/x
  3. Step 3: Cross multiply
    138,347,745.52x = 190,923,949.02 × 75,627,309.64
  4. Step 4: Simplify right side
    138,347,745.52x = 14,439,064,610,227,116
  5. Step 5: Solve for x
    x = 14,439,064,610,227,116/138,347,745.52
  6. Step 6: Final answer
    x = 104,367,906.80

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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.