Home / 20,828,303.91-28,740,871.22-11,535,630.54

Finding the Fourth Proportional to 20,828,303.91, 28,740,871.22 and 11,535,630.54

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Solution

The fourth proportional to 20,828,303.91, 28,740,871.22 and 11,535,630.54 is: 15,917,958.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,303.91 : 28,740,871.22 = 11,535,630.54 : x
  2. Step 2: Convert to fraction form
    20,828,303.91/28,740,871.22 = 11,535,630.54/x
  3. Step 3: Cross multiply
    20,828,303.91x = 28,740,871.22 × 11,535,630.54
  4. Step 4: Simplify right side
    20,828,303.91x = 331,544,071,733,960.88
  5. Step 5: Solve for x
    x = 331,544,071,733,960.88/20,828,303.91
  6. Step 6: Final answer
    x = 15,917,958.23

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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.