Home / 8,507,268.60-12,770,234.10-5,315,998.20

Finding the Fourth Proportional to 8,507,268.60, 12,770,234.10 and 5,315,998.20

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Solution

The fourth proportional to 8,507,268.60, 12,770,234.10 and 5,315,998.20 is: 7,979,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507,268.60 : 12,770,234.10 = 5,315,998.20 : x
  2. Step 2: Convert to fraction form
    8,507,268.60/12,770,234.10 = 5,315,998.20/x
  3. Step 3: Cross multiply
    8,507,268.60x = 12,770,234.10 × 5,315,998.20
  4. Step 4: Simplify right side
    8,507,268.60x = 67,886,541,489,178.62
  5. Step 5: Solve for x
    x = 67,886,541,489,178.62/8,507,268.60
  6. Step 6: Final answer
    x = 7,979,828.15

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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.