Home / 12,892,999.87-19,339,651.68-5,113,811.13

Finding the Fourth Proportional to 12,892,999.87, 19,339,651.68 and 5,113,811.13

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Solution

The fourth proportional to 12,892,999.87, 19,339,651.68 and 5,113,811.13 is: 7,670,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,999.87 : 19,339,651.68 = 5,113,811.13 : x
  2. Step 2: Convert to fraction form
    12,892,999.87/19,339,651.68 = 5,113,811.13/x
  3. Step 3: Cross multiply
    12,892,999.87x = 19,339,651.68 × 5,113,811.13
  4. Step 4: Simplify right side
    12,892,999.87x = 98,899,326,011,507.19
  5. Step 5: Solve for x
    x = 98,899,326,011,507.19/12,892,999.87
  6. Step 6: Final answer
    x = 7,670,776.93

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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.