Home / 20,320,450.42-30,485,987.43-11,792,588.98

Finding the Fourth Proportional to 20,320,450.42, 30,485,987.43 and 11,792,588.98

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Solution

The fourth proportional to 20,320,450.42, 30,485,987.43 and 11,792,588.98 is: 17,691,966.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320,450.42 : 30,485,987.43 = 11,792,588.98 : x
  2. Step 2: Convert to fraction form
    20,320,450.42/30,485,987.43 = 11,792,588.98/x
  3. Step 3: Cross multiply
    20,320,450.42x = 30,485,987.43 × 11,792,588.98
  4. Step 4: Simplify right side
    20,320,450.42x = 359,508,719,411,436.56
  5. Step 5: Solve for x
    x = 359,508,719,411,436.56/20,320,450.42
  6. Step 6: Final answer
    x = 17,691,966.07

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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.