Home / 21,115,366.60-31,661,503.60-16,766,442.06

Finding the Fourth Proportional to 21,115,366.60, 31,661,503.60 and 16,766,442.06

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Solution

The fourth proportional to 21,115,366.60, 31,661,503.60 and 16,766,442.06 is: 25,140,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,366.60 : 31,661,503.60 = 16,766,442.06 : x
  2. Step 2: Convert to fraction form
    21,115,366.60/31,661,503.60 = 16,766,442.06/x
  3. Step 3: Cross multiply
    21,115,366.60x = 31,661,503.60 × 16,766,442.06
  4. Step 4: Simplify right side
    21,115,366.60x = 530,850,765,641,881.44
  5. Step 5: Solve for x
    x = 530,850,765,641,881.44/21,115,366.60
  6. Step 6: Final answer
    x = 25,140,494.87

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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.