Home / 209,526,245.57-289,100,617.30-127,040,303.81

Finding the Fourth Proportional to 209,526,245.57, 289,100,617.30 and 127,040,303.81

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Solution

The fourth proportional to 209,526,245.57, 289,100,617.30 and 127,040,303.81 is: 175,287,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,526,245.57 : 289,100,617.30 = 127,040,303.81 : x
  2. Step 2: Convert to fraction form
    209,526,245.57/289,100,617.30 = 127,040,303.81/x
  3. Step 3: Cross multiply
    209,526,245.57x = 289,100,617.30 × 127,040,303.81
  4. Step 4: Simplify right side
    209,526,245.57x = 36,727,430,253,450,544
  5. Step 5: Solve for x
    x = 36,727,430,253,450,544/209,526,245.57
  6. Step 6: Final answer
    x = 175,287,970.03

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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.