Home / 20,206,915.74-30,329,536.17-12,507,269.82

Finding the Fourth Proportional to 20,206,915.74, 30,329,536.17 and 12,507,269.82

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Solution

The fourth proportional to 20,206,915.74, 30,329,536.17 and 12,507,269.82 is: 18,772,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,915.74 : 30,329,536.17 = 12,507,269.82 : x
  2. Step 2: Convert to fraction form
    20,206,915.74/30,329,536.17 = 12,507,269.82/x
  3. Step 3: Cross multiply
    20,206,915.74x = 30,329,536.17 × 12,507,269.82
  4. Step 4: Simplify right side
    20,206,915.74x = 379,339,692,393,639.44
  5. Step 5: Solve for x
    x = 379,339,692,393,639.44/20,206,915.74
  6. Step 6: Final answer
    x = 18,772,765.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.