Home / 5,257,685.70-7,886,528.55-2,990,204.10

Finding the Fourth Proportional to 5,257,685.70, 7,886,528.55 and 2,990,204.10

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Solution

The fourth proportional to 5,257,685.70, 7,886,528.55 and 2,990,204.10 is: 4,485,306.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257,685.70 : 7,886,528.55 = 2,990,204.10 : x
  2. Step 2: Convert to fraction form
    5,257,685.70/7,886,528.55 = 2,990,204.10/x
  3. Step 3: Cross multiply
    5,257,685.70x = 7,886,528.55 × 2,990,204.10
  4. Step 4: Simplify right side
    5,257,685.70x = 23,582,330,004,977.05
  5. Step 5: Solve for x
    x = 23,582,330,004,977.05/5,257,685.70
  6. Step 6: Final answer
    x = 4,485,306.15

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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.