Home / 120,940,065.15-181,342,796.43-71,775,896.91

Finding the Fourth Proportional to 120,940,065.15, 181,342,796.43 and 71,775,896.91

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Solution

The fourth proportional to 120,940,065.15, 181,342,796.43 and 71,775,896.91 is: 107,623,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,940,065.15 : 181,342,796.43 = 71,775,896.91 : x
  2. Step 2: Convert to fraction form
    120,940,065.15/181,342,796.43 = 71,775,896.91/x
  3. Step 3: Cross multiply
    120,940,065.15x = 181,342,796.43 × 71,775,896.91
  4. Step 4: Simplify right side
    120,940,065.15x = 13,016,041,861,930,796
  5. Step 5: Solve for x
    x = 13,016,041,861,930,796/120,940,065.15
  6. Step 6: Final answer
    x = 107,623,903.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.