Home / 19,321,500.44-28,996,618.29-7,807,067.81

Finding the Fourth Proportional to 19,321,500.44, 28,996,618.29 and 7,807,067.81

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Solution

The fourth proportional to 19,321,500.44, 28,996,618.29 and 7,807,067.81 is: 11,716,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321,500.44 : 28,996,618.29 = 7,807,067.81 : x
  2. Step 2: Convert to fraction form
    19,321,500.44/28,996,618.29 = 7,807,067.81/x
  3. Step 3: Cross multiply
    19,321,500.44x = 28,996,618.29 × 7,807,067.81
  4. Step 4: Simplify right side
    19,321,500.44x = 226,378,565,323,207.78
  5. Step 5: Solve for x
    x = 226,378,565,323,207.78/19,321,500.44
  6. Step 6: Final answer
    x = 11,716,407.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.