Home / 81,666,792,141.60-122,500,188,212.40-68,606,098,125.60

Finding the Fourth Proportional to 81,666,792,141.60, 122,500,188,212.40 and 68,606,098,125.60

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Solution

The fourth proportional to 81,666,792,141.60, 122,500,188,212.40 and 68,606,098,125.60 is: 102,909,147,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666,792,141.60 : 122,500,188,212.40 = 68,606,098,125.60 : x
  2. Step 2: Convert to fraction form
    81,666,792,141.60/122,500,188,212.40 = 68,606,098,125.60/x
  3. Step 3: Cross multiply
    81,666,792,141.60x = 122,500,188,212.40 × 68,606,098,125.60
  4. Step 4: Simplify right side
    81,666,792,141.60x = 8,404,259,932,904,382,005,248
  5. Step 5: Solve for x
    x = 8,404,259,932,904,382,005,248/81,666,792,141.60
  6. Step 6: Final answer
    x = 102,909,147,188.40

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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.