Home / 13,121,239.38-18,107,318.06-7,320,021.14

Finding the Fourth Proportional to 13,121,239.38, 18,107,318.06 and 7,320,021.14

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Solution

The fourth proportional to 13,121,239.38, 18,107,318.06 and 7,320,021.14 is: 10,101,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,239.38 : 18,107,318.06 = 7,320,021.14 : x
  2. Step 2: Convert to fraction form
    13,121,239.38/18,107,318.06 = 7,320,021.14/x
  3. Step 3: Cross multiply
    13,121,239.38x = 18,107,318.06 × 7,320,021.14
  4. Step 4: Simplify right side
    13,121,239.38x = 132,545,950,987,903.77
  5. Step 5: Solve for x
    x = 132,545,950,987,903.77/13,121,239.38
  6. Step 6: Final answer
    x = 10,101,633.48

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1.5x scale

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.