Home / 10,867,040.40-16,300,560.60-7,040,665.20

Finding the Fourth Proportional to 10,867,040.40, 16,300,560.60 and 7,040,665.20

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Solution

The fourth proportional to 10,867,040.40, 16,300,560.60 and 7,040,665.20 is: 10,560,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867,040.40 : 16,300,560.60 = 7,040,665.20 : x
  2. Step 2: Convert to fraction form
    10,867,040.40/16,300,560.60 = 7,040,665.20/x
  3. Step 3: Cross multiply
    10,867,040.40x = 16,300,560.60 × 7,040,665.20
  4. Step 4: Simplify right side
    10,867,040.40x = 114,766,789,756,911.12
  5. Step 5: Solve for x
    x = 114,766,789,756,911.12/10,867,040.40
  6. Step 6: Final answer
    x = 10,560,997.80

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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.