Home / 21,290,709.93-31,917,642.71-18,073,268.43

Finding the Fourth Proportional to 21,290,709.93, 31,917,642.71 and 18,073,268.43

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Solution

The fourth proportional to 21,290,709.93, 31,917,642.71 and 18,073,268.43 is: 27,094,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,709.93 : 31,917,642.71 = 18,073,268.43 : x
  2. Step 2: Convert to fraction form
    21,290,709.93/31,917,642.71 = 18,073,268.43/x
  3. Step 3: Cross multiply
    21,290,709.93x = 31,917,642.71 × 18,073,268.43
  4. Step 4: Simplify right side
    21,290,709.93x = 576,856,124,260,296.25
  5. Step 5: Solve for x
    x = 576,856,124,260,296.25/21,290,709.93
  6. Step 6: Final answer
    x = 27,094,264.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.