Home / 11,591,288.80-17,386,933.20-8,190,066.40

Finding the Fourth Proportional to 11,591,288.80, 17,386,933.20 and 8,190,066.40

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Solution

The fourth proportional to 11,591,288.80, 17,386,933.20 and 8,190,066.40 is: 12,285,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591,288.80 : 17,386,933.20 = 8,190,066.40 : x
  2. Step 2: Convert to fraction form
    11,591,288.80/17,386,933.20 = 8,190,066.40/x
  3. Step 3: Cross multiply
    11,591,288.80x = 17,386,933.20 × 8,190,066.40
  4. Step 4: Simplify right side
    11,591,288.80x = 142,400,137,400,364.47
  5. Step 5: Solve for x
    x = 142,400,137,400,364.47/11,591,288.80
  6. Step 6: Final answer
    x = 12,285,099.60

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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.