Home / 21,223,568.29-31,839,310.91-6,845,136.79

Finding the Fourth Proportional to 21,223,568.29, 31,839,310.91 and 6,845,136.79

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Solution

The fourth proportional to 21,223,568.29, 31,839,310.91 and 6,845,136.79 is: 10,268,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223,568.29 : 31,839,310.91 = 6,845,136.79 : x
  2. Step 2: Convert to fraction form
    21,223,568.29/31,839,310.91 = 6,845,136.79/x
  3. Step 3: Cross multiply
    21,223,568.29x = 31,839,310.91 × 6,845,136.79
  4. Step 4: Simplify right side
    21,223,568.29x = 217,944,438,478,289.38
  5. Step 5: Solve for x
    x = 217,944,438,478,289.38/21,223,568.29
  6. Step 6: Final answer
    x = 10,268,981.89

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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.