Home / 7,872,771,200.40-11,809,156,800.60-3,213,096,512.40

Finding the Fourth Proportional to 7,872,771,200.40, 11,809,156,800.60 and 3,213,096,512.40

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Solution

The fourth proportional to 7,872,771,200.40, 11,809,156,800.60 and 3,213,096,512.40 is: 4,819,644,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872,771,200.40 : 11,809,156,800.60 = 3,213,096,512.40 : x
  2. Step 2: Convert to fraction form
    7,872,771,200.40/11,809,156,800.60 = 3,213,096,512.40/x
  3. Step 3: Cross multiply
    7,872,771,200.40x = 11,809,156,800.60 × 3,213,096,512.40
  4. Step 4: Simplify right side
    7,872,771,200.40x = 37,943,960,530,392,604,672
  5. Step 5: Solve for x
    x = 37,943,960,530,392,604,672/7,872,771,200.40
  6. Step 6: Final answer
    x = 4,819,644,768.60

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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.