Home / 165,729,367.07-228,712,047.78-90,379,806.13

Finding the Fourth Proportional to 165,729,367.07, 228,712,047.78 and 90,379,806.13

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Solution

The fourth proportional to 165,729,367.07, 228,712,047.78 and 90,379,806.13 is: 124,727,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,729,367.07 : 228,712,047.78 = 90,379,806.13 : x
  2. Step 2: Convert to fraction form
    165,729,367.07/228,712,047.78 = 90,379,806.13/x
  3. Step 3: Cross multiply
    165,729,367.07x = 228,712,047.78 × 90,379,806.13
  4. Step 4: Simplify right side
    165,729,367.07x = 20,670,950,538,576,508
  5. Step 5: Solve for x
    x = 20,670,950,538,576,508/165,729,367.07
  6. Step 6: Final answer
    x = 124,727,143.44

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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.