Home / 20,697,529.77-28,355,717.22-19,921,785.87

Finding the Fourth Proportional to 20,697,529.77, 28,355,717.22 and 19,921,785.87

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Solution

The fourth proportional to 20,697,529.77, 28,355,717.22 and 19,921,785.87 is: 27,292,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,529.77 : 28,355,717.22 = 19,921,785.87 : x
  2. Step 2: Convert to fraction form
    20,697,529.77/28,355,717.22 = 19,921,785.87/x
  3. Step 3: Cross multiply
    20,697,529.77x = 28,355,717.22 × 19,921,785.87
  4. Step 4: Simplify right side
    20,697,529.77x = 564,896,526,647,111.62
  5. Step 5: Solve for x
    x = 564,896,526,647,111.62/20,697,529.77
  6. Step 6: Final answer
    x = 27,292,944.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.