Home / 21,707,918.03-29,956,985.82-11,918,996.25

Finding the Fourth Proportional to 21,707,918.03, 29,956,985.82 and 11,918,996.25

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Solution

The fourth proportional to 21,707,918.03, 29,956,985.82 and 11,918,996.25 is: 16,448,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707,918.03 : 29,956,985.82 = 11,918,996.25 : x
  2. Step 2: Convert to fraction form
    21,707,918.03/29,956,985.82 = 11,918,996.25/x
  3. Step 3: Cross multiply
    21,707,918.03x = 29,956,985.82 × 11,918,996.25
  4. Step 4: Simplify right side
    21,707,918.03x = 357,057,201,649,883.19
  5. Step 5: Solve for x
    x = 357,057,201,649,883.19/21,707,918.03
  6. Step 6: Final answer
    x = 16,448,247.19

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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.