Home / 18,864,135.40-28,277,540.70-9,271,661.80

Finding the Fourth Proportional to 18,864,135.40, 28,277,540.70 and 9,271,661.80

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Solution

The fourth proportional to 18,864,135.40, 28,277,540.70 and 9,271,661.80 is: 13,898,320.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864,135.40 : 28,277,540.70 = 9,271,661.80 : x
  2. Step 2: Convert to fraction form
    18,864,135.40/28,277,540.70 = 9,271,661.80/x
  3. Step 3: Cross multiply
    18,864,135.40x = 28,277,540.70 × 9,271,661.80
  4. Step 4: Simplify right side
    18,864,135.40x = 262,179,793,906,135.28
  5. Step 5: Solve for x
    x = 262,179,793,906,135.28/18,864,135.40
  6. Step 6: Final answer
    x = 13,898,320.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.