Home / 40,129,986.84-55,379,665.27-21,795,272.34

Finding the Fourth Proportional to 40,129,986.84, 55,379,665.27 and 21,795,272.34

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Solution

The fourth proportional to 40,129,986.84, 55,379,665.27 and 21,795,272.34 is: 30,077,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129,986.84 : 55,379,665.27 = 21,795,272.34 : x
  2. Step 2: Convert to fraction form
    40,129,986.84/55,379,665.27 = 21,795,272.34/x
  3. Step 3: Cross multiply
    40,129,986.84x = 55,379,665.27 × 21,795,272.34
  4. Step 4: Simplify right side
    40,129,986.84x = 1,207,014,886,326,303.25
  5. Step 5: Solve for x
    x = 1,207,014,886,326,303.25/40,129,986.84
  6. Step 6: Final answer
    x = 30,077,629.76

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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.