Home / 21,645,937.72-29,871,387.48-11,856,991.32

Finding the Fourth Proportional to 21,645,937.72, 29,871,387.48 and 11,856,991.32

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Solution

The fourth proportional to 21,645,937.72, 29,871,387.48 and 11,856,991.32 is: 16,362,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645,937.72 : 29,871,387.48 = 11,856,991.32 : x
  2. Step 2: Convert to fraction form
    21,645,937.72/29,871,387.48 = 11,856,991.32/x
  3. Step 3: Cross multiply
    21,645,937.72x = 29,871,387.48 × 11,856,991.32
  4. Step 4: Simplify right side
    21,645,937.72x = 354,184,782,066,716.69
  5. Step 5: Solve for x
    x = 354,184,782,066,716.69/21,645,937.72
  6. Step 6: Final answer
    x = 16,362,644.42

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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.