Home / 12,461,201.90-18,678,900.45-6,769,400.30

Finding the Fourth Proportional to 12,461,201.90, 18,678,900.45 and 6,769,400.30

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Solution

The fourth proportional to 12,461,201.90, 18,678,900.45 and 6,769,400.30 is: 10,147,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461,201.90 : 18,678,900.45 = 6,769,400.30 : x
  2. Step 2: Convert to fraction form
    12,461,201.90/18,678,900.45 = 6,769,400.30/x
  3. Step 3: Cross multiply
    12,461,201.90x = 18,678,900.45 × 6,769,400.30
  4. Step 4: Simplify right side
    12,461,201.90x = 126,444,954,309,900.12
  5. Step 5: Solve for x
    x = 126,444,954,309,900.12/12,461,201.90
  6. Step 6: Final answer
    x = 10,147,091.37

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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.