Home / 21,907,789.81-30,074,435.38-18,804,926.32

Finding the Fourth Proportional to 21,907,789.81, 30,074,435.38 and 18,804,926.32

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Solution

The fourth proportional to 21,907,789.81, 30,074,435.38 and 18,804,926.32 is: 25,814,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907,789.81 : 30,074,435.38 = 18,804,926.32 : x
  2. Step 2: Convert to fraction form
    21,907,789.81/30,074,435.38 = 18,804,926.32/x
  3. Step 3: Cross multiply
    21,907,789.81x = 30,074,435.38 × 18,804,926.32
  4. Step 4: Simplify right side
    21,907,789.81x = 565,547,541,286,129
  5. Step 5: Solve for x
    x = 565,547,541,286,129/21,907,789.81
  6. Step 6: Final answer
    x = 25,814,906.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.