Home / 144,129,959.37-198,899,535.75-78,050,571.60

Finding the Fourth Proportional to 144,129,959.37, 198,899,535.75 and 78,050,571.60

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Solution

The fourth proportional to 144,129,959.37, 198,899,535.75 and 78,050,571.60 is: 107,709,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,129,959.37 : 198,899,535.75 = 78,050,571.60 : x
  2. Step 2: Convert to fraction form
    144,129,959.37/198,899,535.75 = 78,050,571.60/x
  3. Step 3: Cross multiply
    144,129,959.37x = 198,899,535.75 × 78,050,571.60
  4. Step 4: Simplify right side
    144,129,959.37x = 15,524,222,456,262,134
  5. Step 5: Solve for x
    x = 15,524,222,456,262,134/144,129,959.37
  6. Step 6: Final answer
    x = 107,709,892.68

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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.