Home / 28,513,998.20-42,770,997.30-9,340,131.80

Finding the Fourth Proportional to 28,513,998.20, 42,770,997.30 and 9,340,131.80

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Solution

The fourth proportional to 28,513,998.20, 42,770,997.30 and 9,340,131.80 is: 14,010,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513,998.20 : 42,770,997.30 = 9,340,131.80 : x
  2. Step 2: Convert to fraction form
    28,513,998.20/42,770,997.30 = 9,340,131.80/x
  3. Step 3: Cross multiply
    28,513,998.20x = 42,770,997.30 × 9,340,131.80
  4. Step 4: Simplify right side
    28,513,998.20x = 399,486,751,999,444.12
  5. Step 5: Solve for x
    x = 399,486,751,999,444.12/28,513,998.20
  6. Step 6: Final answer
    x = 14,010,197.70

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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.