Home / 14,040,922.80-21,061,384.20-12,305,319.60

Finding the Fourth Proportional to 14,040,922.80, 21,061,384.20 and 12,305,319.60

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Solution

The fourth proportional to 14,040,922.80, 21,061,384.20 and 12,305,319.60 is: 18,457,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040,922.80 : 21,061,384.20 = 12,305,319.60 : x
  2. Step 2: Convert to fraction form
    14,040,922.80/21,061,384.20 = 12,305,319.60/x
  3. Step 3: Cross multiply
    14,040,922.80x = 21,061,384.20 × 12,305,319.60
  4. Step 4: Simplify right side
    14,040,922.80x = 259,167,063,799,390.31
  5. Step 5: Solve for x
    x = 259,167,063,799,390.31/14,040,922.80
  6. Step 6: Final answer
    x = 18,457,979.40

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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.