Home / 12,769,717.58-19,137,942.21-5,187,819.50

Finding the Fourth Proportional to 12,769,717.58, 19,137,942.21 and 5,187,819.50

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Solution

The fourth proportional to 12,769,717.58, 19,137,942.21 and 5,187,819.50 is: 7,774,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769,717.58 : 19,137,942.21 = 5,187,819.50 : x
  2. Step 2: Convert to fraction form
    12,769,717.58/19,137,942.21 = 5,187,819.50/x
  3. Step 3: Cross multiply
    12,769,717.58x = 19,137,942.21 × 5,187,819.50
  4. Step 4: Simplify right side
    12,769,717.58x = 99,284,189,786,911.09
  5. Step 5: Solve for x
    x = 99,284,189,786,911.09/12,769,717.58
  6. Step 6: Final answer
    x = 7,774,971.46

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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.