Home / 20,580,743.12-28,401,466.10-11,288,388.82

Finding the Fourth Proportional to 20,580,743.12, 28,401,466.10 and 11,288,388.82

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Solution

The fourth proportional to 20,580,743.12, 28,401,466.10 and 11,288,388.82 is: 15,577,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580,743.12 : 28,401,466.10 = 11,288,388.82 : x
  2. Step 2: Convert to fraction form
    20,580,743.12/28,401,466.10 = 11,288,388.82/x
  3. Step 3: Cross multiply
    20,580,743.12x = 28,401,466.10 × 11,288,388.82
  4. Step 4: Simplify right side
    20,580,743.12x = 320,606,792,267,403.38
  5. Step 5: Solve for x
    x = 320,606,792,267,403.38/20,580,743.12
  6. Step 6: Final answer
    x = 15,577,998.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.