Home / 40,129,997.09-55,379,679.41-21,795,282.59

Finding the Fourth Proportional to 40,129,997.09, 55,379,679.41 and 21,795,282.59

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Solution

The fourth proportional to 40,129,997.09, 55,379,679.41 and 21,795,282.59 is: 30,077,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129,997.09 : 55,379,679.41 = 21,795,282.59 : x
  2. Step 2: Convert to fraction form
    40,129,997.09/55,379,679.41 = 21,795,282.59/x
  3. Step 3: Cross multiply
    40,129,997.09x = 55,379,679.41 × 21,795,282.59
  4. Step 4: Simplify right side
    40,129,997.09x = 1,207,015,762,262,144.25
  5. Step 5: Solve for x
    x = 1,207,015,762,262,144.25/40,129,997.09
  6. Step 6: Final answer
    x = 30,077,643.91

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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.