Home / 81,797,141.86-122,686,618.80-29,272,693.65

Finding the Fourth Proportional to 81,797,141.86, 122,686,618.80 and 29,272,693.65

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Solution

The fourth proportional to 81,797,141.86, 122,686,618.80 and 29,272,693.65 is: 43,905,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,797,141.86 : 122,686,618.80 = 29,272,693.65 : x
  2. Step 2: Convert to fraction form
    81,797,141.86/122,686,618.80 = 29,272,693.65/x
  3. Step 3: Cross multiply
    81,797,141.86x = 122,686,618.80 × 29,272,693.65
  4. Step 4: Simplify right side
    81,797,141.86x = 3,591,367,807,426,540.50
  5. Step 5: Solve for x
    x = 3,591,367,807,426,540.50/81,797,141.86
  6. Step 6: Final answer
    x = 43,905,786.02

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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.