Home / 25,528,021.20-38,292,031.80-18,361,659.60

Finding the Fourth Proportional to 25,528,021.20, 38,292,031.80 and 18,361,659.60

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Solution

The fourth proportional to 25,528,021.20, 38,292,031.80 and 18,361,659.60 is: 27,542,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,528,021.20 : 38,292,031.80 = 18,361,659.60 : x
  2. Step 2: Convert to fraction form
    25,528,021.20/38,292,031.80 = 18,361,659.60/x
  3. Step 3: Cross multiply
    25,528,021.20x = 38,292,031.80 × 18,361,659.60
  4. Step 4: Simplify right side
    25,528,021.20x = 703,105,253,303,975.25
  5. Step 5: Solve for x
    x = 703,105,253,303,975.25/25,528,021.20
  6. Step 6: Final answer
    x = 27,542,489.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.