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Finding the Fourth Proportional to 4,205,128,819.15, 6,307,693,228.73 and 4,205,128,819.15

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Solution

The fourth proportional to 4,205,128,819.15, 6,307,693,228.73 and 4,205,128,819.15 is: 6,307,693,228.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,205,128,819.15 : 6,307,693,228.73 = 4,205,128,819.15 : x
  2. Step 2: Convert to fraction form
    4,205,128,819.15/6,307,693,228.73 = 4,205,128,819.15/x
  3. Step 3: Cross multiply
    4,205,128,819.15x = 6,307,693,228.73 × 4,205,128,819.15
  4. Step 4: Simplify right side
    4,205,128,819.15x = 26,524,662,578,489,835,520
  5. Step 5: Solve for x
    x = 26,524,662,578,489,835,520/4,205,128,819.15
  6. Step 6: Final answer
    x = 6,307,693,228.73

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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.