Home / 13,215,632.49-18,203,592.11-9,341,493.21

Finding the Fourth Proportional to 13,215,632.49, 18,203,592.11 and 9,341,493.21

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Solution

The fourth proportional to 13,215,632.49, 18,203,592.11 and 9,341,493.21 is: 12,867,241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,632.49 : 18,203,592.11 = 9,341,493.21 : x
  2. Step 2: Convert to fraction form
    13,215,632.49/18,203,592.11 = 9,341,493.21/x
  3. Step 3: Cross multiply
    13,215,632.49x = 18,203,592.11 × 9,341,493.21
  4. Step 4: Simplify right side
    13,215,632.49x = 170,048,732,046,467.12
  5. Step 5: Solve for x
    x = 170,048,732,046,467.12/13,215,632.49
  6. Step 6: Final answer
    x = 12,867,241.29

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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.