Home / 20,538,185.86-28,344,597.78-11,370,828.61

Finding the Fourth Proportional to 20,538,185.86, 28,344,597.78 and 11,370,828.61

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Solution

The fourth proportional to 20,538,185.86, 28,344,597.78 and 11,370,828.61 is: 15,692,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538,185.86 : 28,344,597.78 = 11,370,828.61 : x
  2. Step 2: Convert to fraction form
    20,538,185.86/28,344,597.78 = 11,370,828.61/x
  3. Step 3: Cross multiply
    20,538,185.86x = 28,344,597.78 × 11,370,828.61
  4. Step 4: Simplify right side
    20,538,185.86x = 322,301,563,375,766.50
  5. Step 5: Solve for x
    x = 322,301,563,375,766.50/20,538,185.86
  6. Step 6: Final answer
    x = 15,692,796.12

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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.