Home / 21,728,971.44-29,985,837.12-11,939,522.04

Finding the Fourth Proportional to 21,728,971.44, 29,985,837.12 and 11,939,522.04

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Solution

The fourth proportional to 21,728,971.44, 29,985,837.12 and 11,939,522.04 is: 16,476,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728,971.44 : 29,985,837.12 = 11,939,522.04 : x
  2. Step 2: Convert to fraction form
    21,728,971.44/29,985,837.12 = 11,939,522.04/x
  3. Step 3: Cross multiply
    21,728,971.44x = 29,985,837.12 × 11,939,522.04
  4. Step 4: Simplify right side
    21,728,971.44x = 358,016,563,182,090.12
  5. Step 5: Solve for x
    x = 358,016,563,182,090.12/21,728,971.44
  6. Step 6: Final answer
    x = 16,476,461.58

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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.