Home / 21,458,813.20-32,167,224.60-8,662,238.80

Finding the Fourth Proportional to 21,458,813.20, 32,167,224.60 and 8,662,238.80

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Solution

The fourth proportional to 21,458,813.20, 32,167,224.60 and 8,662,238.80 is: 12,984,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458,813.20 : 32,167,224.60 = 8,662,238.80 : x
  2. Step 2: Convert to fraction form
    21,458,813.20/32,167,224.60 = 8,662,238.80/x
  3. Step 3: Cross multiply
    21,458,813.20x = 32,167,224.60 × 8,662,238.80
  4. Step 4: Simplify right side
    21,458,813.20x = 278,640,181,018,434.53
  5. Step 5: Solve for x
    x = 278,640,181,018,434.53/21,458,813.20
  6. Step 6: Final answer
    x = 12,984,883.11

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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.