Home / 209,526,056.88-289,100,356.88-127,040,115.12

Finding the Fourth Proportional to 209,526,056.88, 289,100,356.88 and 127,040,115.12

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Solution

The fourth proportional to 209,526,056.88, 289,100,356.88 and 127,040,115.12 is: 175,287,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,526,056.88 : 289,100,356.88 = 127,040,115.12 : x
  2. Step 2: Convert to fraction form
    209,526,056.88/289,100,356.88 = 127,040,115.12/x
  3. Step 3: Cross multiply
    209,526,056.88x = 289,100,356.88 × 127,040,115.12
  4. Step 4: Simplify right side
    209,526,056.88x = 36,727,342,619,268,288
  5. Step 5: Solve for x
    x = 36,727,342,619,268,288/209,526,056.88
  6. Step 6: Final answer
    x = 175,287,709.63

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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.