Home / 20,115,029.70-30,172,544.55-7,335,951.30

Finding the Fourth Proportional to 20,115,029.70, 30,172,544.55 and 7,335,951.30

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Solution

The fourth proportional to 20,115,029.70, 30,172,544.55 and 7,335,951.30 is: 11,003,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115,029.70 : 30,172,544.55 = 7,335,951.30 : x
  2. Step 2: Convert to fraction form
    20,115,029.70/30,172,544.55 = 7,335,951.30/x
  3. Step 3: Cross multiply
    20,115,029.70x = 30,172,544.55 × 7,335,951.30
  4. Step 4: Simplify right side
    20,115,029.70x = 221,344,317,415,880.41
  5. Step 5: Solve for x
    x = 221,344,317,415,880.41/20,115,029.70
  6. Step 6: Final answer
    x = 11,003,926.95

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1.5x scale

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.