Home / 165,729,376.08-228,712,060.20-90,379,815.15

Finding the Fourth Proportional to 165,729,376.08, 228,712,060.20 and 90,379,815.15

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Solution

The fourth proportional to 165,729,376.08, 228,712,060.20 and 90,379,815.15 is: 124,727,155.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,729,376.08 : 228,712,060.20 = 90,379,815.15 : x
  2. Step 2: Convert to fraction form
    165,729,376.08/228,712,060.20 = 90,379,815.15/x
  3. Step 3: Cross multiply
    165,729,376.08x = 228,712,060.20 × 90,379,815.15
  4. Step 4: Simplify right side
    165,729,376.08x = 20,670,953,723,451,672
  5. Step 5: Solve for x
    x = 20,670,953,723,451,672/165,729,376.08
  6. Step 6: Final answer
    x = 124,727,155.88

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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.