Home / 14,120,971.09-21,171,786.78-7,191,036.07

Finding the Fourth Proportional to 14,120,971.09, 21,171,786.78 and 7,191,036.07

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Solution

The fourth proportional to 14,120,971.09, 21,171,786.78 and 7,191,036.07 is: 10,781,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120,971.09 : 21,171,786.78 = 7,191,036.07 : x
  2. Step 2: Convert to fraction form
    14,120,971.09/21,171,786.78 = 7,191,036.07/x
  3. Step 3: Cross multiply
    14,120,971.09x = 21,171,786.78 × 7,191,036.07
  4. Step 4: Simplify right side
    14,120,971.09x = 152,247,082,401,329.16
  5. Step 5: Solve for x
    x = 152,247,082,401,329.16/14,120,971.09
  6. Step 6: Final answer
    x = 10,781,629.78

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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.