Home / 20,150,486.80-30,225,730.20-8,191,805.20

Finding the Fourth Proportional to 20,150,486.80, 30,225,730.20 and 8,191,805.20

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Solution

The fourth proportional to 20,150,486.80, 30,225,730.20 and 8,191,805.20 is: 12,287,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150,486.80 : 30,225,730.20 = 8,191,805.20 : x
  2. Step 2: Convert to fraction form
    20,150,486.80/30,225,730.20 = 8,191,805.20/x
  3. Step 3: Cross multiply
    20,150,486.80x = 30,225,730.20 × 8,191,805.20
  4. Step 4: Simplify right side
    20,150,486.80x = 247,603,293,826,157.03
  5. Step 5: Solve for x
    x = 247,603,293,826,157.03/20,150,486.80
  6. Step 6: Final answer
    x = 12,287,707.80

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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.