Home / 81,586,538.80-122,344,378.80-26,978,023.60

Finding the Fourth Proportional to 81,586,538.80, 122,344,378.80 and 26,978,023.60

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Solution

The fourth proportional to 81,586,538.80, 122,344,378.80 and 26,978,023.60 is: 40,455,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586,538.80 : 122,344,378.80 = 26,978,023.60 : x
  2. Step 2: Convert to fraction form
    81,586,538.80/122,344,378.80 = 26,978,023.60/x
  3. Step 3: Cross multiply
    81,586,538.80x = 122,344,378.80 × 26,978,023.60
  4. Step 4: Simplify right side
    81,586,538.80x = 3,300,609,538,593,740
  5. Step 5: Solve for x
    x = 3,300,609,538,593,740/81,586,538.80
  6. Step 6: Final answer
    x = 40,455,320.05

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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.