Home / 13,538,466-18,682,990.32-7,343,487.72

Finding the Fourth Proportional to 13,538,466, 18,682,990.32 and 7,343,487.72

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Solution

The fourth proportional to 13,538,466, 18,682,990.32 and 7,343,487.72 is: 10,133,962.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538,466 : 18,682,990.32 = 7,343,487.72 : x
  2. Step 2: Convert to fraction form
    13,538,466/18,682,990.32 = 7,343,487.72/x
  3. Step 3: Cross multiply
    13,538,466x = 18,682,990.32 × 7,343,487.72
  4. Step 4: Simplify right side
    13,538,466x = 137,198,309,987,798.88
  5. Step 5: Solve for x
    x = 137,198,309,987,798.88/13,538,466
  6. Step 6: Final answer
    x = 10,133,962.74

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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.