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Finding the Third Proportional to 15,909,978,426 and 22,121,553,293

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Solution

The third proportional to 15,909,978,426 and 22,121,553,293 is: 30,758,251,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909,978,426 : 22,121,553,293 = 22,121,553,293 : x
  2. Step 2: Convert to fraction form
    15,909,978,426/22,121,553,293 = 22,121,553,293/x
  3. Step 3: Cross multiply
    15,909,978,426x = 22,121,553,293 × 22,121,553,293
  4. Step 4: Simplify right side
    15,909,978,426x = 489,363,120,095,039,127,552
  5. Step 5: Solve for x
    x = 489,363,120,095,039,127,552/15,909,978,426
  6. Step 6: Final answer
    x = 30,758,251,645.10

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.