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Finding the Fourth Proportional to 5,118,129,478.60, 7,677,194,217.90 and 5,118,129,478.60

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Solution

The fourth proportional to 5,118,129,478.60, 7,677,194,217.90 and 5,118,129,478.60 is: 7,677,194,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118,129,478.60 : 7,677,194,217.90 = 5,118,129,478.60 : x
  2. Step 2: Convert to fraction form
    5,118,129,478.60/7,677,194,217.90 = 5,118,129,478.60/x
  3. Step 3: Cross multiply
    5,118,129,478.60x = 7,677,194,217.90 × 5,118,129,478.60
  4. Step 4: Simplify right side
    5,118,129,478.60x = 39,292,874,039,571,464,192
  5. Step 5: Solve for x
    x = 39,292,874,039,571,464,192/5,118,129,478.60
  6. Step 6: Final answer
    x = 7,677,194,217.90

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Double scale
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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.