Home / 12,999,611.16-17,939,452.34-7,198,392.80

Finding the Fourth Proportional to 12,999,611.16, 17,939,452.34 and 7,198,392.80

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Solution

The fourth proportional to 12,999,611.16, 17,939,452.34 and 7,198,392.80 is: 9,933,775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,611.16 : 17,939,452.34 = 7,198,392.80 : x
  2. Step 2: Convert to fraction form
    12,999,611.16/17,939,452.34 = 7,198,392.80/x
  3. Step 3: Cross multiply
    12,999,611.16x = 17,939,452.34 × 7,198,392.80
  4. Step 4: Simplify right side
    12,999,611.16x = 129,135,224,560,199.14
  5. Step 5: Solve for x
    x = 129,135,224,560,199.14/12,999,611.16
  6. Step 6: Final answer
    x = 9,933,775.94

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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.