Home / 20,458,871.04-28,233,102.96-11,291,513.76

Finding the Fourth Proportional to 20,458,871.04, 28,233,102.96 and 11,291,513.76

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Solution

The fourth proportional to 20,458,871.04, 28,233,102.96 and 11,291,513.76 is: 15,582,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,871.04 : 28,233,102.96 = 11,291,513.76 : x
  2. Step 2: Convert to fraction form
    20,458,871.04/28,233,102.96 = 11,291,513.76/x
  3. Step 3: Cross multiply
    20,458,871.04x = 28,233,102.96 × 11,291,513.76
  4. Step 4: Simplify right side
    20,458,871.04x = 318,794,470,560,336.75
  5. Step 5: Solve for x
    x = 318,794,470,560,336.75/20,458,871.04
  6. Step 6: Final answer
    x = 15,582,212.23

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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.