Home / 8,279,344.80-12,419,017.20-5,409,563.40

Finding the Fourth Proportional to 8,279,344.80, 12,419,017.20 and 5,409,563.40

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Solution

The fourth proportional to 8,279,344.80, 12,419,017.20 and 5,409,563.40 is: 8,114,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279,344.80 : 12,419,017.20 = 5,409,563.40 : x
  2. Step 2: Convert to fraction form
    8,279,344.80/12,419,017.20 = 5,409,563.40/x
  3. Step 3: Cross multiply
    8,279,344.80x = 12,419,017.20 × 5,409,563.40
  4. Step 4: Simplify right side
    8,279,344.80x = 67,181,460,909,090.48
  5. Step 5: Solve for x
    x = 67,181,460,909,090.48/8,279,344.80
  6. Step 6: Final answer
    x = 8,114,345.10

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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.