Home / 20,216,015.30-30,334,520.55-8,857,612.10

Finding the Fourth Proportional to 20,216,015.30, 30,334,520.55 and 8,857,612.10

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Solution

The fourth proportional to 20,216,015.30, 30,334,520.55 and 8,857,612.10 is: 13,291,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216,015.30 : 30,334,520.55 = 8,857,612.10 : x
  2. Step 2: Convert to fraction form
    20,216,015.30/30,334,520.55 = 8,857,612.10/x
  3. Step 3: Cross multiply
    20,216,015.30x = 30,334,520.55 × 8,857,612.10
  4. Step 4: Simplify right side
    20,216,015.30x = 268,691,416,271,378.66
  5. Step 5: Solve for x
    x = 268,691,416,271,378.66/20,216,015.30
  6. Step 6: Final answer
    x = 13,291,017.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.