Home / 12,810,006.20-19,215,009.30-12,257,132.60

Finding the Fourth Proportional to 12,810,006.20, 19,215,009.30 and 12,257,132.60

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Solution

The fourth proportional to 12,810,006.20, 19,215,009.30 and 12,257,132.60 is: 18,385,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810,006.20 : 19,215,009.30 = 12,257,132.60 : x
  2. Step 2: Convert to fraction form
    12,810,006.20/19,215,009.30 = 12,257,132.60/x
  3. Step 3: Cross multiply
    12,810,006.20x = 19,215,009.30 × 12,257,132.60
  4. Step 4: Simplify right side
    12,810,006.20x = 235,520,916,900,333.19
  5. Step 5: Solve for x
    x = 235,520,916,900,333.19/12,810,006.20
  6. Step 6: Final answer
    x = 18,385,698.90

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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.