Home / 20,302,866.69-27,986,960.29-12,447,836.57

Finding the Fourth Proportional to 20,302,866.69, 27,986,960.29 and 12,447,836.57

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Solution

The fourth proportional to 20,302,866.69, 27,986,960.29 and 12,447,836.57 is: 17,159,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302,866.69 : 27,986,960.29 = 12,447,836.57 : x
  2. Step 2: Convert to fraction form
    20,302,866.69/27,986,960.29 = 12,447,836.57/x
  3. Step 3: Cross multiply
    20,302,866.69x = 27,986,960.29 × 12,447,836.57
  4. Step 4: Simplify right side
    20,302,866.69x = 348,377,107,578,825.81
  5. Step 5: Solve for x
    x = 348,377,107,578,825.81/20,302,866.69
  6. Step 6: Final answer
    x = 17,159,010.74

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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.