Home / 39,126,224.21-53,992,081.71-21,721,448.43

Finding the Fourth Proportional to 39,126,224.21, 53,992,081.71 and 21,721,448.43

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Solution

The fourth proportional to 39,126,224.21, 53,992,081.71 and 21,721,448.43 is: 29,974,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,126,224.21 : 53,992,081.71 = 21,721,448.43 : x
  2. Step 2: Convert to fraction form
    39,126,224.21/53,992,081.71 = 21,721,448.43/x
  3. Step 3: Cross multiply
    39,126,224.21x = 53,992,081.71 × 21,721,448.43
  4. Step 4: Simplify right side
    39,126,224.21x = 1,172,786,218,492,111.25
  5. Step 5: Solve for x
    x = 1,172,786,218,492,111.25/39,126,224.21
  6. Step 6: Final answer
    x = 29,974,428.72

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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.