Home / 134,145,775.31-185,093,805.38-78,380,410.07

Finding the Fourth Proportional to 134,145,775.31, 185,093,805.38 and 78,380,410.07

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Solution

The fourth proportional to 134,145,775.31, 185,093,805.38 and 78,380,410.07 is: 108,148,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,145,775.31 : 185,093,805.38 = 78,380,410.07 : x
  2. Step 2: Convert to fraction form
    134,145,775.31/185,093,805.38 = 78,380,410.07/x
  3. Step 3: Cross multiply
    134,145,775.31x = 185,093,805.38 × 78,380,410.07
  4. Step 4: Simplify right side
    134,145,775.31x = 14,507,728,367,172,006
  5. Step 5: Solve for x
    x = 14,507,728,367,172,006/134,145,775.31
  6. Step 6: Final answer
    x = 108,148,976.99

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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.