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Finding the Fourth Proportional to 2,990,099,239.15, 4,485,148,858.73 and 2,990,099,239.15

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Solution

The fourth proportional to 2,990,099,239.15, 4,485,148,858.73 and 2,990,099,239.15 is: 4,485,148,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,099,239.15 : 4,485,148,858.73 = 2,990,099,239.15 : x
  2. Step 2: Convert to fraction form
    2,990,099,239.15/4,485,148,858.73 = 2,990,099,239.15/x
  3. Step 3: Cross multiply
    2,990,099,239.15x = 4,485,148,858.73 × 2,990,099,239.15
  4. Step 4: Simplify right side
    2,990,099,239.15x = 13,411,040,189,948,114,944
  5. Step 5: Solve for x
    x = 13,411,040,189,948,114,944/2,990,099,239.15
  6. Step 6: Final answer
    x = 4,485,148,858.73

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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.