Home / 21,405,110.22-29,539,132.40-11,615,556.43

Finding the Fourth Proportional to 21,405,110.22, 29,539,132.40 and 11,615,556.43

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Solution

The fourth proportional to 21,405,110.22, 29,539,132.40 and 11,615,556.43 is: 16,029,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,110.22 : 29,539,132.40 = 11,615,556.43 : x
  2. Step 2: Convert to fraction form
    21,405,110.22/29,539,132.40 = 11,615,556.43/x
  3. Step 3: Cross multiply
    21,405,110.22x = 29,539,132.40 × 11,615,556.43
  4. Step 4: Simplify right side
    21,405,110.22x = 343,113,459,286,055
  5. Step 5: Solve for x
    x = 343,113,459,286,055/21,405,110.22
  6. Step 6: Final answer
    x = 16,029,511.45

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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.