Home / 6,439,633.40-9,659,450.10-4,200,145.40

Finding the Fourth Proportional to 6,439,633.40, 9,659,450.10 and 4,200,145.40

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Solution

The fourth proportional to 6,439,633.40, 9,659,450.10 and 4,200,145.40 is: 6,300,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,633.40 : 9,659,450.10 = 4,200,145.40 : x
  2. Step 2: Convert to fraction form
    6,439,633.40/9,659,450.10 = 4,200,145.40/x
  3. Step 3: Cross multiply
    6,439,633.40x = 9,659,450.10 × 4,200,145.40
  4. Step 4: Simplify right side
    6,439,633.40x = 40,571,094,904,044.54
  5. Step 5: Solve for x
    x = 40,571,094,904,044.54/6,439,633.40
  6. Step 6: Final answer
    x = 6,300,218.10

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Double scale
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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.