Home / 20,458,917.36-28,233,248.22-11,291,494.50

Finding the Fourth Proportional to 20,458,917.36, 28,233,248.22 and 11,291,494.50

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Solution

The fourth proportional to 20,458,917.36, 28,233,248.22 and 11,291,494.50 is: 15,582,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,917.36 : 28,233,248.22 = 11,291,494.50 : x
  2. Step 2: Convert to fraction form
    20,458,917.36/28,233,248.22 = 11,291,494.50/x
  3. Step 3: Cross multiply
    20,458,917.36x = 28,233,248.22 × 11,291,494.50
  4. Step 4: Simplify right side
    20,458,917.36x = 318,795,566,993,264.75
  5. Step 5: Solve for x
    x = 318,795,566,993,264.75/20,458,917.36
  6. Step 6: Final answer
    x = 15,582,230.54

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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.