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Finding the Fourth Proportional to 4,915,865,961.60, 7,373,798,942.40 and 4,915,865,961.60

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Solution

The fourth proportional to 4,915,865,961.60, 7,373,798,942.40 and 4,915,865,961.60 is: 7,373,798,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915,865,961.60 : 7,373,798,942.40 = 4,915,865,961.60 : x
  2. Step 2: Convert to fraction form
    4,915,865,961.60/7,373,798,942.40 = 4,915,865,961.60/x
  3. Step 3: Cross multiply
    4,915,865,961.60x = 7,373,798,942.40 × 4,915,865,961.60
  4. Step 4: Simplify right side
    4,915,865,961.60x = 36,248,607,228,626,239,488
  5. Step 5: Solve for x
    x = 36,248,607,228,626,239,488/4,915,865,961.60
  6. Step 6: Final answer
    x = 7,373,798,942.40

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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.