Home / 12,906,591.33-17,812,137.11-7,400,478.46

Finding the Fourth Proportional to 12,906,591.33, 17,812,137.11 and 7,400,478.46

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Solution

The fourth proportional to 12,906,591.33, 17,812,137.11 and 7,400,478.46 is: 10,213,257.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,591.33 : 17,812,137.11 = 7,400,478.46 : x
  2. Step 2: Convert to fraction form
    12,906,591.33/17,812,137.11 = 7,400,478.46/x
  3. Step 3: Cross multiply
    12,906,591.33x = 17,812,137.11 × 7,400,478.46
  4. Step 4: Simplify right side
    12,906,591.33x = 131,818,337,009,121.64
  5. Step 5: Solve for x
    x = 131,818,337,009,121.64/12,906,591.33
  6. Step 6: Final answer
    x = 10,213,257.21

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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.