Home / 20,187,231.80-30,280,847.70-9,956,992.55

Finding the Fourth Proportional to 20,187,231.80, 30,280,847.70 and 9,956,992.55

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Solution

The fourth proportional to 20,187,231.80, 30,280,847.70 and 9,956,992.55 is: 14,935,488.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,231.80 : 30,280,847.70 = 9,956,992.55 : x
  2. Step 2: Convert to fraction form
    20,187,231.80/30,280,847.70 = 9,956,992.55/x
  3. Step 3: Cross multiply
    20,187,231.80x = 30,280,847.70 × 9,956,992.55
  4. Step 4: Simplify right side
    20,187,231.80x = 301,506,174,956,584.62
  5. Step 5: Solve for x
    x = 301,506,174,956,584.62/20,187,231.80
  6. Step 6: Final answer
    x = 14,935,488.83

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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.