Home / 8,093,429.20-12,140,143.80-7,432,080.40

Finding the Fourth Proportional to 8,093,429.20, 12,140,143.80 and 7,432,080.40

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Solution

The fourth proportional to 8,093,429.20, 12,140,143.80 and 7,432,080.40 is: 11,148,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,093,429.20 : 12,140,143.80 = 7,432,080.40 : x
  2. Step 2: Convert to fraction form
    8,093,429.20/12,140,143.80 = 7,432,080.40/x
  3. Step 3: Cross multiply
    8,093,429.20x = 12,140,143.80 × 7,432,080.40
  4. Step 4: Simplify right side
    8,093,429.20x = 90,226,524,789,161.53
  5. Step 5: Solve for x
    x = 90,226,524,789,161.53/8,093,429.20
  6. Step 6: Final answer
    x = 11,148,120.60

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Similar ratio
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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.