Home / 13,309,213.13-18,366,769.45-7,197,641.63

Finding the Fourth Proportional to 13,309,213.13, 18,366,769.45 and 7,197,641.63

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Solution

The fourth proportional to 13,309,213.13, 18,366,769.45 and 7,197,641.63 is: 9,932,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,213.13 : 18,366,769.45 = 7,197,641.63 : x
  2. Step 2: Convert to fraction form
    13,309,213.13/18,366,769.45 = 7,197,641.63/x
  3. Step 3: Cross multiply
    13,309,213.13x = 18,366,769.45 × 7,197,641.63
  4. Step 4: Simplify right side
    13,309,213.13x = 132,197,424,401,932.20
  5. Step 5: Solve for x
    x = 132,197,424,401,932.20/13,309,213.13
  6. Step 6: Final answer
    x = 9,932,775.37

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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.