Home / 81,666,792,141.10-122,500,188,211.65-68,606,098,125.10

Finding the Fourth Proportional to 81,666,792,141.10, 122,500,188,211.65 and 68,606,098,125.10

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Solution

The fourth proportional to 81,666,792,141.10, 122,500,188,211.65 and 68,606,098,125.10 is: 102,909,147,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666,792,141.10 : 122,500,188,211.65 = 68,606,098,125.10 : x
  2. Step 2: Convert to fraction form
    81,666,792,141.10/122,500,188,211.65 = 68,606,098,125.10/x
  3. Step 3: Cross multiply
    81,666,792,141.10x = 122,500,188,211.65 × 68,606,098,125.10
  4. Step 4: Simplify right side
    81,666,792,141.10x = 8,404,259,932,791,677,911,040
  5. Step 5: Solve for x
    x = 8,404,259,932,791,677,911,040/81,666,792,141.10
  6. Step 6: Final answer
    x = 102,909,147,187.65

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Double scale
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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.