Home / 81,189,668.03-111,933,350.15-64,499,785.29

Finding the Fourth Proportional to 81,189,668.03, 111,933,350.15 and 64,499,785.29

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Solution

The fourth proportional to 81,189,668.03, 111,933,350.15 and 64,499,785.29 is: 88,923,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,189,668.03 : 111,933,350.15 = 64,499,785.29 : x
  2. Step 2: Convert to fraction form
    81,189,668.03/111,933,350.15 = 64,499,785.29/x
  3. Step 3: Cross multiply
    81,189,668.03x = 111,933,350.15 × 64,499,785.29
  4. Step 4: Simplify right side
    81,189,668.03x = 7,219,677,051,142,890
  5. Step 5: Solve for x
    x = 7,219,677,051,142,890/81,189,668.03
  6. Step 6: Final answer
    x = 88,923,593.69

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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.