Home / 15,365,298.02-21,204,067.74-8,489,731.10

Finding the Fourth Proportional to 15,365,298.02, 21,204,067.74 and 8,489,731.10

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Solution

The fourth proportional to 15,365,298.02, 21,204,067.74 and 8,489,731.10 is: 11,715,804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,298.02 : 21,204,067.74 = 8,489,731.10 : x
  2. Step 2: Convert to fraction form
    15,365,298.02/21,204,067.74 = 8,489,731.10/x
  3. Step 3: Cross multiply
    15,365,298.02x = 21,204,067.74 × 8,489,731.10
  4. Step 4: Simplify right side
    15,365,298.02x = 180,016,833,338,784.69
  5. Step 5: Solve for x
    x = 180,016,833,338,784.69/15,365,298.02
  6. Step 6: Final answer
    x = 11,715,804.87

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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.