Home / 13,143,206.11-18,230,416.93-12,793,636.03

Finding the Fourth Proportional to 13,143,206.11, 18,230,416.93 and 12,793,636.03

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Solution

The fourth proportional to 13,143,206.11, 18,230,416.93 and 12,793,636.03 is: 17,745,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143,206.11 : 18,230,416.93 = 12,793,636.03 : x
  2. Step 2: Convert to fraction form
    13,143,206.11/18,230,416.93 = 12,793,636.03/x
  3. Step 3: Cross multiply
    13,143,206.11x = 18,230,416.93 × 12,793,636.03
  4. Step 4: Simplify right side
    13,143,206.11x = 233,233,318,722,449.75
  5. Step 5: Solve for x
    x = 233,233,318,722,449.75/13,143,206.11
  6. Step 6: Final answer
    x = 17,745,542.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.