Home / 29,118,971.77-40,198,742.75-18,109,268.42

Finding the Fourth Proportional to 29,118,971.77, 40,198,742.75 and 18,109,268.42

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Solution

The fourth proportional to 29,118,971.77, 40,198,742.75 and 18,109,268.42 is: 24,999,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,118,971.77 : 40,198,742.75 = 18,109,268.42 : x
  2. Step 2: Convert to fraction form
    29,118,971.77/40,198,742.75 = 18,109,268.42/x
  3. Step 3: Cross multiply
    29,118,971.77x = 40,198,742.75 × 18,109,268.42
  4. Step 4: Simplify right side
    29,118,971.77x = 727,969,822,491,918.75
  5. Step 5: Solve for x
    x = 727,969,822,491,918.75/29,118,971.77
  6. Step 6: Final answer
    x = 24,999,846.43

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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.