Home / 13,309,213.30-18,366,769.71-7,197,641.80

Finding the Fourth Proportional to 13,309,213.30, 18,366,769.71 and 7,197,641.80

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Solution

The fourth proportional to 13,309,213.30, 18,366,769.71 and 7,197,641.80 is: 9,932,775.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,213.30 : 18,366,769.71 = 7,197,641.80 : x
  2. Step 2: Convert to fraction form
    13,309,213.30/18,366,769.71 = 7,197,641.80/x
  3. Step 3: Cross multiply
    13,309,213.30x = 18,366,769.71 × 7,197,641.80
  4. Step 4: Simplify right side
    13,309,213.30x = 132,197,429,395,669.88
  5. Step 5: Solve for x
    x = 132,197,429,395,669.88/13,309,213.30
  6. Step 6: Final answer
    x = 9,932,775.62

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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.