Home / 20,016,684.84-30,013,651.98-7,879,575.72

Finding the Fourth Proportional to 20,016,684.84, 30,013,651.98 and 7,879,575.72

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Solution

The fourth proportional to 20,016,684.84, 30,013,651.98 and 7,879,575.72 is: 11,814,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016,684.84 : 30,013,651.98 = 7,879,575.72 : x
  2. Step 2: Convert to fraction form
    20,016,684.84/30,013,651.98 = 7,879,575.72/x
  3. Step 3: Cross multiply
    20,016,684.84x = 30,013,651.98 × 7,879,575.72
  4. Step 4: Simplify right side
    20,016,684.84x = 236,494,843,410,137.91
  5. Step 5: Solve for x
    x = 236,494,843,410,137.91/20,016,684.84
  6. Step 6: Final answer
    x = 11,814,885.70

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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.