Home / 13,608,826.20-20,389,619.70-12,758,520.60

Finding the Fourth Proportional to 13,608,826.20, 20,389,619.70 and 12,758,520.60

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Solution

The fourth proportional to 13,608,826.20, 20,389,619.70 and 12,758,520.60 is: 19,115,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,826.20 : 20,389,619.70 = 12,758,520.60 : x
  2. Step 2: Convert to fraction form
    13,608,826.20/20,389,619.70 = 12,758,520.60/x
  3. Step 3: Cross multiply
    13,608,826.20x = 20,389,619.70 × 12,758,520.60
  4. Step 4: Simplify right side
    13,608,826.20x = 260,141,382,968,615.81
  5. Step 5: Solve for x
    x = 260,141,382,968,615.81/13,608,826.20
  6. Step 6: Final answer
    x = 19,115,637.10

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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.