Home / 15,509,743.80-21,404,027.10-8,540,723.52

Finding the Fourth Proportional to 15,509,743.80, 21,404,027.10 and 8,540,723.52

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Solution

The fourth proportional to 15,509,743.80, 21,404,027.10 and 8,540,723.52 is: 11,786,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,509,743.80 : 21,404,027.10 = 8,540,723.52 : x
  2. Step 2: Convert to fraction form
    15,509,743.80/21,404,027.10 = 8,540,723.52/x
  3. Step 3: Cross multiply
    15,509,743.80x = 21,404,027.10 × 8,540,723.52
  4. Step 4: Simplify right side
    15,509,743.80x = 182,805,877,675,687.41
  5. Step 5: Solve for x
    x = 182,805,877,675,687.41/15,509,743.80
  6. Step 6: Final answer
    x = 11,786,518.21

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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.