Home / 20,756,676.69-28,639,377.71-12,049,680.20

Finding the Fourth Proportional to 20,756,676.69, 28,639,377.71 and 12,049,680.20

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Solution

The fourth proportional to 20,756,676.69, 28,639,377.71 and 12,049,680.20 is: 16,625,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756,676.69 : 28,639,377.71 = 12,049,680.20 : x
  2. Step 2: Convert to fraction form
    20,756,676.69/28,639,377.71 = 12,049,680.20/x
  3. Step 3: Cross multiply
    20,756,676.69x = 28,639,377.71 × 12,049,680.20
  4. Step 4: Simplify right side
    20,756,676.69x = 345,095,342,329,063.06
  5. Step 5: Solve for x
    x = 345,095,342,329,063.06/20,756,676.69
  6. Step 6: Final answer
    x = 16,625,751.20

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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.