Home / 12,690,418.50-17,512,799.40-7,257,910.50

Finding the Fourth Proportional to 12,690,418.50, 17,512,799.40 and 7,257,910.50

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Solution

The fourth proportional to 12,690,418.50, 17,512,799.40 and 7,257,910.50 is: 10,015,929.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,418.50 : 17,512,799.40 = 7,257,910.50 : x
  2. Step 2: Convert to fraction form
    12,690,418.50/17,512,799.40 = 7,257,910.50/x
  3. Step 3: Cross multiply
    12,690,418.50x = 17,512,799.40 × 7,257,910.50
  4. Step 4: Simplify right side
    12,690,418.50x = 127,106,330,649,653.69
  5. Step 5: Solve for x
    x = 127,106,330,649,653.69/12,690,418.50
  6. Step 6: Final answer
    x = 10,015,929.00

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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.