Home / 20,298,126.30-28,009,682.19-11,477,145.30

Finding the Fourth Proportional to 20,298,126.30, 28,009,682.19 and 11,477,145.30

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Solution

The fourth proportional to 20,298,126.30, 28,009,682.19 and 11,477,145.30 is: 15,837,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298,126.30 : 28,009,682.19 = 11,477,145.30 : x
  2. Step 2: Convert to fraction form
    20,298,126.30/28,009,682.19 = 11,477,145.30/x
  3. Step 3: Cross multiply
    20,298,126.30x = 28,009,682.19 × 11,477,145.30
  4. Step 4: Simplify right side
    20,298,126.30x = 321,471,192,301,452.25
  5. Step 5: Solve for x
    x = 321,471,192,301,452.25/20,298,126.30
  6. Step 6: Final answer
    x = 15,837,481.13

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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.