Home / 21,505,208.80-32,257,813.20-13,890,949.60

Finding the Fourth Proportional to 21,505,208.80, 32,257,813.20 and 13,890,949.60

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Solution

The fourth proportional to 21,505,208.80, 32,257,813.20 and 13,890,949.60 is: 20,836,424.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505,208.80 : 32,257,813.20 = 13,890,949.60 : x
  2. Step 2: Convert to fraction form
    21,505,208.80/32,257,813.20 = 13,890,949.60/x
  3. Step 3: Cross multiply
    21,505,208.80x = 32,257,813.20 × 13,890,949.60
  4. Step 4: Simplify right side
    21,505,208.80x = 448,091,657,367,414.69
  5. Step 5: Solve for x
    x = 448,091,657,367,414.69/21,505,208.80
  6. Step 6: Final answer
    x = 20,836,424.40

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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.