Home / 21,785,425.40-32,678,138.10-12,230,276.60

Finding the Fourth Proportional to 21,785,425.40, 32,678,138.10 and 12,230,276.60

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Solution

The fourth proportional to 21,785,425.40, 32,678,138.10 and 12,230,276.60 is: 18,345,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785,425.40 : 32,678,138.10 = 12,230,276.60 : x
  2. Step 2: Convert to fraction form
    21,785,425.40/32,678,138.10 = 12,230,276.60/x
  3. Step 3: Cross multiply
    21,785,425.40x = 32,678,138.10 × 12,230,276.60
  4. Step 4: Simplify right side
    21,785,425.40x = 399,662,667,735,998.44
  5. Step 5: Solve for x
    x = 399,662,667,735,998.44/21,785,425.40
  6. Step 6: Final answer
    x = 18,345,414.90

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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.