Home / 13,380,484.97-18,463,588.29-7,419,741.86

Finding the Fourth Proportional to 13,380,484.97, 18,463,588.29 and 7,419,741.86

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Solution

The fourth proportional to 13,380,484.97, 18,463,588.29 and 7,419,741.86 is: 10,238,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380,484.97 : 18,463,588.29 = 7,419,741.86 : x
  2. Step 2: Convert to fraction form
    13,380,484.97/18,463,588.29 = 7,419,741.86/x
  3. Step 3: Cross multiply
    13,380,484.97x = 18,463,588.29 × 7,419,741.86
  4. Step 4: Simplify right side
    13,380,484.97x = 136,995,058,921,118.81
  5. Step 5: Solve for x
    x = 136,995,058,921,118.81/13,380,484.97
  6. Step 6: Final answer
    x = 10,238,422.54

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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.