Home / 13,309,218.89-18,366,777.41-7,197,647.39

Finding the Fourth Proportional to 13,309,218.89, 18,366,777.41 and 7,197,647.39

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Solution

The fourth proportional to 13,309,218.89, 18,366,777.41 and 7,197,647.39 is: 9,932,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,218.89 : 18,366,777.41 = 7,197,647.39 : x
  2. Step 2: Convert to fraction form
    13,309,218.89/18,366,777.41 = 7,197,647.39/x
  3. Step 3: Cross multiply
    13,309,218.89x = 18,366,777.41 × 7,197,647.39
  4. Step 4: Simplify right side
    13,309,218.89x = 132,197,587,428,850.77
  5. Step 5: Solve for x
    x = 132,197,587,428,850.77/13,309,218.89
  6. Step 6: Final answer
    x = 9,932,783.32

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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.