Home / 12,148,863.20-18,226,059.60-7,097,573.60

Finding the Fourth Proportional to 12,148,863.20, 18,226,059.60 and 7,097,573.60

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Solution

The fourth proportional to 12,148,863.20, 18,226,059.60 and 7,097,573.60 is: 10,647,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,863.20 : 18,226,059.60 = 7,097,573.60 : x
  2. Step 2: Convert to fraction form
    12,148,863.20/18,226,059.60 = 7,097,573.60/x
  3. Step 3: Cross multiply
    12,148,863.20x = 18,226,059.60 × 7,097,573.60
  4. Step 4: Simplify right side
    12,148,863.20x = 129,360,799,448,986.56
  5. Step 5: Solve for x
    x = 129,360,799,448,986.56/12,148,863.20
  6. Step 6: Final answer
    x = 10,647,975.64

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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.