Home / 165,729,374.08-228,712,057.44-90,379,813.15

Finding the Fourth Proportional to 165,729,374.08, 228,712,057.44 and 90,379,813.15

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Solution

The fourth proportional to 165,729,374.08, 228,712,057.44 and 90,379,813.15 is: 124,727,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,729,374.08 : 228,712,057.44 = 90,379,813.15 : x
  2. Step 2: Convert to fraction form
    165,729,374.08/228,712,057.44 = 90,379,813.15/x
  3. Step 3: Cross multiply
    165,729,374.08x = 228,712,057.44 × 90,379,813.15
  4. Step 4: Simplify right side
    165,729,374.08x = 20,670,953,016,579,268
  5. Step 5: Solve for x
    x = 20,670,953,016,579,268/165,729,374.08
  6. Step 6: Final answer
    x = 124,727,153.12

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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.