Home / 2,680,768.40-4,021,152.60-2,207,987.60

Finding the Fourth Proportional to 2,680,768.40, 4,021,152.60 and 2,207,987.60

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Solution

The fourth proportional to 2,680,768.40, 4,021,152.60 and 2,207,987.60 is: 3,311,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,768.40 : 4,021,152.60 = 2,207,987.60 : x
  2. Step 2: Convert to fraction form
    2,680,768.40/4,021,152.60 = 2,207,987.60/x
  3. Step 3: Cross multiply
    2,680,768.40x = 4,021,152.60 × 2,207,987.60
  4. Step 4: Simplify right side
    2,680,768.40x = 8,878,655,078,507.76
  5. Step 5: Solve for x
    x = 8,878,655,078,507.76/2,680,768.40
  6. Step 6: Final answer
    x = 3,311,981.40

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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.