Home / 10,870,181.20-16,286,609.40-5,178,149.20

Finding the Fourth Proportional to 10,870,181.20, 16,286,609.40 and 5,178,149.20

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Solution

The fourth proportional to 10,870,181.20, 16,286,609.40 and 5,178,149.20 is: 7,758,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870,181.20 : 16,286,609.40 = 5,178,149.20 : x
  2. Step 2: Convert to fraction form
    10,870,181.20/16,286,609.40 = 5,178,149.20/x
  3. Step 3: Cross multiply
    10,870,181.20x = 16,286,609.40 × 5,178,149.20
  4. Step 4: Simplify right side
    10,870,181.20x = 84,334,493,435,322.48
  5. Step 5: Solve for x
    x = 84,334,493,435,322.48/10,870,181.20
  6. Step 6: Final answer
    x = 7,758,333.73

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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.