Home / 5,400,701.70-8,101,052.55-4,990,128.90

Finding the Fourth Proportional to 5,400,701.70, 8,101,052.55 and 4,990,128.90

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Solution

The fourth proportional to 5,400,701.70, 8,101,052.55 and 4,990,128.90 is: 7,485,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400,701.70 : 8,101,052.55 = 4,990,128.90 : x
  2. Step 2: Convert to fraction form
    5,400,701.70/8,101,052.55 = 4,990,128.90/x
  3. Step 3: Cross multiply
    5,400,701.70x = 8,101,052.55 × 4,990,128.90
  4. Step 4: Simplify right side
    5,400,701.70x = 40,425,296,450,173.70
  5. Step 5: Solve for x
    x = 40,425,296,450,173.70/5,400,701.70
  6. Step 6: Final answer
    x = 7,485,193.35

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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.