Home / 21,695,118.47-29,939,489.34-11,906,196.68

Finding the Fourth Proportional to 21,695,118.47, 29,939,489.34 and 11,906,196.68

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Solution

The fourth proportional to 21,695,118.47, 29,939,489.34 and 11,906,196.68 is: 16,430,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695,118.47 : 29,939,489.34 = 11,906,196.68 : x
  2. Step 2: Convert to fraction form
    21,695,118.47/29,939,489.34 = 11,906,196.68/x
  3. Step 3: Cross multiply
    21,695,118.47x = 29,939,489.34 × 11,906,196.68
  4. Step 4: Simplify right side
    21,695,118.47x = 356,465,448,677,988.12
  5. Step 5: Solve for x
    x = 356,465,448,677,988.12/21,695,118.47
  6. Step 6: Final answer
    x = 16,430,675.37

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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.