Home / 15,305,623.80-21,120,963.68-9,504,280.98

Finding the Fourth Proportional to 15,305,623.80, 21,120,963.68 and 9,504,280.98

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Solution

The fourth proportional to 15,305,623.80, 21,120,963.68 and 9,504,280.98 is: 13,115,412.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,623.80 : 21,120,963.68 = 9,504,280.98 : x
  2. Step 2: Convert to fraction form
    15,305,623.80/21,120,963.68 = 9,504,280.98/x
  3. Step 3: Cross multiply
    15,305,623.80x = 21,120,963.68 × 9,504,280.98
  4. Step 4: Simplify right side
    15,305,623.80x = 200,739,573,335,573.41
  5. Step 5: Solve for x
    x = 200,739,573,335,573.41/15,305,623.80
  6. Step 6: Final answer
    x = 13,115,412.74

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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.