Home / 120,917,986.80-181,400,599.80-48,122,379.60

Finding the Fourth Proportional to 120,917,986.80, 181,400,599.80 and 48,122,379.60

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Solution

The fourth proportional to 120,917,986.80, 181,400,599.80 and 48,122,379.60 is: 72,192,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,917,986.80 : 181,400,599.80 = 48,122,379.60 : x
  2. Step 2: Convert to fraction form
    120,917,986.80/181,400,599.80 = 48,122,379.60/x
  3. Step 3: Cross multiply
    120,917,986.80x = 181,400,599.80 × 48,122,379.60
  4. Step 4: Simplify right side
    120,917,986.80x = 8,729,428,523,243,285
  5. Step 5: Solve for x
    x = 8,729,428,523,243,285/120,917,986.80
  6. Step 6: Final answer
    x = 72,192,969.42

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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.