Home / 12,788,169.60-19,195,909.74-5,505,234

Finding the Fourth Proportional to 12,788,169.60, 19,195,909.74 and 5,505,234

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Solution

The fourth proportional to 12,788,169.60, 19,195,909.74 and 5,505,234 is: 8,263,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,169.60 : 19,195,909.74 = 5,505,234 : x
  2. Step 2: Convert to fraction form
    12,788,169.60/19,195,909.74 = 5,505,234/x
  3. Step 3: Cross multiply
    12,788,169.60x = 19,195,909.74 × 5,505,234
  4. Step 4: Simplify right side
    12,788,169.60x = 105,677,974,961,579.16
  5. Step 5: Solve for x
    x = 105,677,974,961,579.16/12,788,169.60
  6. Step 6: Final answer
    x = 8,263,729.55

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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.