Home / 20,501,429.68-28,292,563.44-11,334,662.92

Finding the Fourth Proportional to 20,501,429.68, 28,292,563.44 and 11,334,662.92

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Solution

The fourth proportional to 20,501,429.68, 28,292,563.44 and 11,334,662.92 is: 15,642,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,429.68 : 28,292,563.44 = 11,334,662.92 : x
  2. Step 2: Convert to fraction form
    20,501,429.68/28,292,563.44 = 11,334,662.92/x
  3. Step 3: Cross multiply
    20,501,429.68x = 28,292,563.44 × 11,334,662.92
  4. Step 4: Simplify right side
    20,501,429.68x = 320,686,669,664,384.25
  5. Step 5: Solve for x
    x = 320,686,669,664,384.25/20,501,429.68
  6. Step 6: Final answer
    x = 15,642,161.29

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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.