Home / 11,591,280.80-17,386,921.20-8,190,058.40

Finding the Fourth Proportional to 11,591,280.80, 17,386,921.20 and 8,190,058.40

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Solution

The fourth proportional to 11,591,280.80, 17,386,921.20 and 8,190,058.40 is: 12,285,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591,280.80 : 17,386,921.20 = 8,190,058.40 : x
  2. Step 2: Convert to fraction form
    11,591,280.80/17,386,921.20 = 8,190,058.40/x
  3. Step 3: Cross multiply
    11,591,280.80x = 17,386,921.20 × 8,190,058.40
  4. Step 4: Simplify right side
    11,591,280.80x = 142,399,900,024,198.09
  5. Step 5: Solve for x
    x = 142,399,900,024,198.09/11,591,280.80
  6. Step 6: Final answer
    x = 12,285,087.60

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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.