Home / 20,749,665.04-28,629,494.76-12,163,302.16

Finding the Fourth Proportional to 20,749,665.04, 28,629,494.76 and 12,163,302.16

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Solution

The fourth proportional to 20,749,665.04, 28,629,494.76 and 12,163,302.16 is: 16,782,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749,665.04 : 28,629,494.76 = 12,163,302.16 : x
  2. Step 2: Convert to fraction form
    20,749,665.04/28,629,494.76 = 12,163,302.16/x
  3. Step 3: Cross multiply
    20,749,665.04x = 28,629,494.76 × 12,163,302.16
  4. Step 4: Simplify right side
    20,749,665.04x = 348,229,195,454,016.69
  5. Step 5: Solve for x
    x = 348,229,195,454,016.69/20,749,665.04
  6. Step 6: Final answer
    x = 16,782,400.81

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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.