Home / 9,170,989.20-12,642,625.80-6,409,101.60

Finding the Fourth Proportional to 9,170,989.20, 12,642,625.80 and 6,409,101.60

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Solution

The fourth proportional to 9,170,989.20, 12,642,625.80 and 6,409,101.60 is: 8,835,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170,989.20 : 12,642,625.80 = 6,409,101.60 : x
  2. Step 2: Convert to fraction form
    9,170,989.20/12,642,625.80 = 6,409,101.60/x
  3. Step 3: Cross multiply
    9,170,989.20x = 12,642,625.80 × 6,409,101.60
  4. Step 4: Simplify right side
    9,170,989.20x = 81,027,873,242,981.28
  5. Step 5: Solve for x
    x = 81,027,873,242,981.28/9,170,989.20
  6. Step 6: Final answer
    x = 8,835,238.11

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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.