Home / 18,922,286.96-26,124,099.20-12,407,281.60

Finding the Fourth Proportional to 18,922,286.96, 26,124,099.20 and 12,407,281.60

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Solution

The fourth proportional to 18,922,286.96, 26,124,099.20 and 12,407,281.60 is: 17,129,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922,286.96 : 26,124,099.20 = 12,407,281.60 : x
  2. Step 2: Convert to fraction form
    18,922,286.96/26,124,099.20 = 12,407,281.60/x
  3. Step 3: Cross multiply
    18,922,286.96x = 26,124,099.20 × 12,407,281.60
  4. Step 4: Simplify right side
    18,922,286.96x = 324,129,055,320,734.69
  5. Step 5: Solve for x
    x = 324,129,055,320,734.69/18,922,286.96
  6. Step 6: Final answer
    x = 17,129,486.30

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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.