Home / 12,990,148.20-19,485,222.30-6,259,242.60

Finding the Fourth Proportional to 12,990,148.20, 19,485,222.30 and 6,259,242.60

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Solution

The fourth proportional to 12,990,148.20, 19,485,222.30 and 6,259,242.60 is: 9,388,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,148.20 : 19,485,222.30 = 6,259,242.60 : x
  2. Step 2: Convert to fraction form
    12,990,148.20/19,485,222.30 = 6,259,242.60/x
  3. Step 3: Cross multiply
    12,990,148.20x = 19,485,222.30 × 6,259,242.60
  4. Step 4: Simplify right side
    12,990,148.20x = 121,962,733,490,629.98
  5. Step 5: Solve for x
    x = 121,962,733,490,629.98/12,990,148.20
  6. Step 6: Final answer
    x = 9,388,863.90

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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.