Home / 13,309,611.68-18,367,160.08-7,198,040.20

Finding the Fourth Proportional to 13,309,611.68, 18,367,160.08 and 7,198,040.20

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Solution

The fourth proportional to 13,309,611.68, 18,367,160.08 and 7,198,040.20 is: 9,933,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,611.68 : 18,367,160.08 = 7,198,040.20 : x
  2. Step 2: Convert to fraction form
    13,309,611.68/18,367,160.08 = 7,198,040.20/x
  3. Step 3: Cross multiply
    13,309,611.68x = 18,367,160.08 × 7,198,040.20
  4. Step 4: Simplify right side
    13,309,611.68x = 132,207,556,615,675.20
  5. Step 5: Solve for x
    x = 132,207,556,615,675.20/13,309,611.68
  6. Step 6: Final answer
    x = 9,933,239.21

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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.