Home / 20,807,625.60-31,171,780.80-11,219,817.60

Finding the Fourth Proportional to 20,807,625.60, 31,171,780.80 and 11,219,817.60

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Solution

The fourth proportional to 20,807,625.60, 31,171,780.80 and 11,219,817.60 is: 16,808,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,625.60 : 31,171,780.80 = 11,219,817.60 : x
  2. Step 2: Convert to fraction form
    20,807,625.60/31,171,780.80 = 11,219,817.60/x
  3. Step 3: Cross multiply
    20,807,625.60x = 31,171,780.80 × 11,219,817.60
  4. Step 4: Simplify right side
    20,807,625.60x = 349,741,694,843,182.06
  5. Step 5: Solve for x
    x = 349,741,694,843,182.06/20,807,625.60
  6. Step 6: Final answer
    x = 16,808,342.36

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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.