Home / 15,401,380.87-21,255,086.10-8,786,114.92

Finding the Fourth Proportional to 15,401,380.87, 21,255,086.10 and 8,786,114.92

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Solution

The fourth proportional to 15,401,380.87, 21,255,086.10 and 8,786,114.92 is: 12,125,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,380.87 : 21,255,086.10 = 8,786,114.92 : x
  2. Step 2: Convert to fraction form
    15,401,380.87/21,255,086.10 = 8,786,114.92/x
  3. Step 3: Cross multiply
    15,401,380.87x = 21,255,086.10 × 8,786,114.92
  4. Step 4: Simplify right side
    15,401,380.87x = 186,749,629,109,094.62
  5. Step 5: Solve for x
    x = 186,749,629,109,094.62/15,401,380.87
  6. Step 6: Final answer
    x = 12,125,512.04

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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.