Home / 20,116,556.56-27,761,448.84-12,386,058.64

Finding the Fourth Proportional to 20,116,556.56, 27,761,448.84 and 12,386,058.64

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Solution

The fourth proportional to 20,116,556.56, 27,761,448.84 and 12,386,058.64 is: 17,093,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116,556.56 : 27,761,448.84 = 12,386,058.64 : x
  2. Step 2: Convert to fraction form
    20,116,556.56/27,761,448.84 = 12,386,058.64/x
  3. Step 3: Cross multiply
    20,116,556.56x = 27,761,448.84 × 12,386,058.64
  4. Step 4: Simplify right side
    20,116,556.56x = 343,854,933,263,600
  5. Step 5: Solve for x
    x = 343,854,933,263,600/20,116,556.56
  6. Step 6: Final answer
    x = 17,093,130.84

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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.