Home / 18,486,221.12-25,502,388.48-11,961,956.72

Finding the Fourth Proportional to 18,486,221.12, 25,502,388.48 and 11,961,956.72

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Solution

The fourth proportional to 18,486,221.12, 25,502,388.48 and 11,961,956.72 is: 16,501,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486,221.12 : 25,502,388.48 = 11,961,956.72 : x
  2. Step 2: Convert to fraction form
    18,486,221.12/25,502,388.48 = 11,961,956.72/x
  3. Step 3: Cross multiply
    18,486,221.12x = 25,502,388.48 × 11,961,956.72
  4. Step 4: Simplify right side
    18,486,221.12x = 305,058,467,254,386.62
  5. Step 5: Solve for x
    x = 305,058,467,254,386.62/18,486,221.12
  6. Step 6: Final answer
    x = 16,501,937.59

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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.