Home / 12,672,209.60-19,008,314.40-8,641,131.20

Finding the Fourth Proportional to 12,672,209.60, 19,008,314.40 and 8,641,131.20

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Solution

The fourth proportional to 12,672,209.60, 19,008,314.40 and 8,641,131.20 is: 12,961,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672,209.60 : 19,008,314.40 = 8,641,131.20 : x
  2. Step 2: Convert to fraction form
    12,672,209.60/19,008,314.40 = 8,641,131.20/x
  3. Step 3: Cross multiply
    12,672,209.60x = 19,008,314.40 × 8,641,131.20
  4. Step 4: Simplify right side
    12,672,209.60x = 164,253,338,621,249.25
  5. Step 5: Solve for x
    x = 164,253,338,621,249.25/12,672,209.60
  6. Step 6: Final answer
    x = 12,961,696.80

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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.