Home / 13,188,720.30-18,209,316.34-8,234,705.42

Finding the Fourth Proportional to 13,188,720.30, 18,209,316.34 and 8,234,705.42

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Solution

The fourth proportional to 13,188,720.30, 18,209,316.34 and 8,234,705.42 is: 11,369,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,720.30 : 18,209,316.34 = 8,234,705.42 : x
  2. Step 2: Convert to fraction form
    13,188,720.30/18,209,316.34 = 8,234,705.42/x
  3. Step 3: Cross multiply
    13,188,720.30x = 18,209,316.34 × 8,234,705.42
  4. Step 4: Simplify right side
    13,188,720.30x = 149,948,355,959,492.56
  5. Step 5: Solve for x
    x = 149,948,355,959,492.56/13,188,720.30
  6. Step 6: Final answer
    x = 11,369,439.38

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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.