Home / 20,689,946.82-28,553,012.46-11,522,589.57

Finding the Fourth Proportional to 20,689,946.82, 28,553,012.46 and 11,522,589.57

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Solution

The fourth proportional to 20,689,946.82, 28,553,012.46 and 11,522,589.57 is: 15,901,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,946.82 : 28,553,012.46 = 11,522,589.57 : x
  2. Step 2: Convert to fraction form
    20,689,946.82/28,553,012.46 = 11,522,589.57/x
  3. Step 3: Cross multiply
    20,689,946.82x = 28,553,012.46 × 11,522,589.57
  4. Step 4: Simplify right side
    20,689,946.82x = 329,004,643,563,676.06
  5. Step 5: Solve for x
    x = 329,004,643,563,676.06/20,689,946.82
  6. Step 6: Final answer
    x = 15,901,666.95

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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.