Home / 20,478,220.80-30,705,447.22-9,695,431.12

Finding the Fourth Proportional to 20,478,220.80, 30,705,447.22 and 9,695,431.12

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Solution

The fourth proportional to 20,478,220.80, 30,705,447.22 and 9,695,431.12 is: 14,537,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,220.80 : 30,705,447.22 = 9,695,431.12 : x
  2. Step 2: Convert to fraction form
    20,478,220.80/30,705,447.22 = 9,695,431.12/x
  3. Step 3: Cross multiply
    20,478,220.80x = 30,705,447.22 × 9,695,431.12
  4. Step 4: Simplify right side
    20,478,220.80x = 297,702,548,530,305.44
  5. Step 5: Solve for x
    x = 297,702,548,530,305.44/20,478,220.80
  6. Step 6: Final answer
    x = 14,537,520.20

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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.