Home / 20,838,017.68-28,756,083.79-11,545,553.86

Finding the Fourth Proportional to 20,838,017.68, 28,756,083.79 and 11,545,553.86

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Solution

The fourth proportional to 20,838,017.68, 28,756,083.79 and 11,545,553.86 is: 15,932,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,017.68 : 28,756,083.79 = 11,545,553.86 : x
  2. Step 2: Convert to fraction form
    20,838,017.68/28,756,083.79 = 11,545,553.86/x
  3. Step 3: Cross multiply
    20,838,017.68x = 28,756,083.79 × 11,545,553.86
  4. Step 4: Simplify right side
    20,838,017.68x = 332,004,914,200,117.88
  5. Step 5: Solve for x
    x = 332,004,914,200,117.88/20,838,017.68
  6. Step 6: Final answer
    x = 15,932,653.45

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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.