Home / 12,942,099.70-17,860,471.48-7,141,255.09

Finding the Fourth Proportional to 12,942,099.70, 17,860,471.48 and 7,141,255.09

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Solution

The fourth proportional to 12,942,099.70, 17,860,471.48 and 7,141,255.09 is: 9,855,138.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,099.70 : 17,860,471.48 = 7,141,255.09 : x
  2. Step 2: Convert to fraction form
    12,942,099.70/17,860,471.48 = 7,141,255.09/x
  3. Step 3: Cross multiply
    12,942,099.70x = 17,860,471.48 × 7,141,255.09
  4. Step 4: Simplify right side
    12,942,099.70x = 127,546,182,848,496.69
  5. Step 5: Solve for x
    x = 127,546,182,848,496.69/12,942,099.70
  6. Step 6: Final answer
    x = 9,855,138.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.