Home / 21,115,363.35-31,661,498.73-16,766,438.80

Finding the Fourth Proportional to 21,115,363.35, 31,661,498.73 and 16,766,438.80

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Solution

The fourth proportional to 21,115,363.35, 31,661,498.73 and 16,766,438.80 is: 25,140,489.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,363.35 : 31,661,498.73 = 16,766,438.80 : x
  2. Step 2: Convert to fraction form
    21,115,363.35/31,661,498.73 = 16,766,438.80/x
  3. Step 3: Cross multiply
    21,115,363.35x = 31,661,498.73 × 16,766,438.80
  4. Step 4: Simplify right side
    21,115,363.35x = 530,850,580,785,771.81
  5. Step 5: Solve for x
    x = 530,850,580,785,771.81/21,115,363.35
  6. Step 6: Final answer
    x = 25,140,489.99

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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.