Home / 15,785,815-21,784,424.82-8,542,471

Finding the Fourth Proportional to 15,785,815, 21,784,424.82 and 8,542,471

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Solution

The fourth proportional to 15,785,815, 21,784,424.82 and 8,542,471 is: 11,788,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785,815 : 21,784,424.82 = 8,542,471 : x
  2. Step 2: Convert to fraction form
    15,785,815/21,784,424.82 = 8,542,471/x
  3. Step 3: Cross multiply
    15,785,815x = 21,784,424.82 × 8,542,471
  4. Step 4: Simplify right side
    15,785,815x = 186,092,817,276,530.22
  5. Step 5: Solve for x
    x = 186,092,817,276,530.22/15,785,815
  6. Step 6: Final answer
    x = 11,788,610.04

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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.