Home / 21,164,256.12-29,212,889.10-13,823,211.48

Finding the Fourth Proportional to 21,164,256.12, 29,212,889.10 and 13,823,211.48

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Solution

The fourth proportional to 21,164,256.12, 29,212,889.10 and 13,823,211.48 is: 19,080,091.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164,256.12 : 29,212,889.10 = 13,823,211.48 : x
  2. Step 2: Convert to fraction form
    21,164,256.12/29,212,889.10 = 13,823,211.48/x
  3. Step 3: Cross multiply
    21,164,256.12x = 29,212,889.10 × 13,823,211.48
  4. Step 4: Simplify right side
    21,164,256.12x = 403,815,943,971,086.88
  5. Step 5: Solve for x
    x = 403,815,943,971,086.88/21,164,256.12
  6. Step 6: Final answer
    x = 19,080,091.53

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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.