Home / 165,729,378.08-228,712,062.96-90,379,817.16

Finding the Fourth Proportional to 165,729,378.08, 228,712,062.96 and 90,379,817.16

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Solution

The fourth proportional to 165,729,378.08, 228,712,062.96 and 90,379,817.16 is: 124,727,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,729,378.08 : 228,712,062.96 = 90,379,817.16 : x
  2. Step 2: Convert to fraction form
    165,729,378.08/228,712,062.96 = 90,379,817.16/x
  3. Step 3: Cross multiply
    165,729,378.08x = 228,712,062.96 × 90,379,817.16
  4. Step 4: Simplify right side
    165,729,378.08x = 20,670,954,432,611,208
  5. Step 5: Solve for x
    x = 20,670,954,432,611,208/165,729,378.08
  6. Step 6: Final answer
    x = 124,727,158.65

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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.