Home / 12,879,074.10-19,318,611.15-9,309,890.10

Finding the Fourth Proportional to 12,879,074.10, 19,318,611.15 and 9,309,890.10

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Solution

The fourth proportional to 12,879,074.10, 19,318,611.15 and 9,309,890.10 is: 13,964,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,074.10 : 19,318,611.15 = 9,309,890.10 : x
  2. Step 2: Convert to fraction form
    12,879,074.10/19,318,611.15 = 9,309,890.10/x
  3. Step 3: Cross multiply
    12,879,074.10x = 19,318,611.15 × 9,309,890.10
  4. Step 4: Simplify right side
    12,879,074.10x = 179,854,146,691,134.59
  5. Step 5: Solve for x
    x = 179,854,146,691,134.59/12,879,074.10
  6. Step 6: Final answer
    x = 13,964,835.15

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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.