Home / 20,526,716.77-28,326,944.19-11,107,507.81

Finding the Fourth Proportional to 20,526,716.77, 28,326,944.19 and 11,107,507.81

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Solution

The fourth proportional to 20,526,716.77, 28,326,944.19 and 11,107,507.81 is: 15,328,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526,716.77 : 28,326,944.19 = 11,107,507.81 : x
  2. Step 2: Convert to fraction form
    20,526,716.77/28,326,944.19 = 11,107,507.81/x
  3. Step 3: Cross multiply
    20,526,716.77x = 28,326,944.19 × 11,107,507.81
  4. Step 4: Simplify right side
    20,526,716.77x = 314,641,753,847,807.94
  5. Step 5: Solve for x
    x = 314,641,753,847,807.94/20,526,716.77
  6. Step 6: Final answer
    x = 15,328,401.39

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1.5x scale

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.