Home / 40,405,912.12-55,760,156.60-21,821,050.46

Finding the Fourth Proportional to 40,405,912.12, 55,760,156.60 and 21,821,050.46

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Solution

The fourth proportional to 40,405,912.12, 55,760,156.60 and 21,821,050.46 is: 30,113,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405,912.12 : 55,760,156.60 = 21,821,050.46 : x
  2. Step 2: Convert to fraction form
    40,405,912.12/55,760,156.60 = 21,821,050.46/x
  3. Step 3: Cross multiply
    40,405,912.12x = 55,760,156.60 × 21,821,050.46
  4. Step 4: Simplify right side
    40,405,912.12x = 1,216,745,190,699,599.50
  5. Step 5: Solve for x
    x = 1,216,745,190,699,599.50/40,405,912.12
  6. Step 6: Final answer
    x = 30,113,048.48

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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.