Home / 81,120,783,447.54-121,595,293,861.77-27,286,670,196.18

Finding the Fourth Proportional to 81,120,783,447.54, 121,595,293,861.77 and 27,286,670,196.18

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Solution

The fourth proportional to 81,120,783,447.54, 121,595,293,861.77 and 27,286,670,196.18 is: 40,901,117,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,120,783,447.54 : 121,595,293,861.77 = 27,286,670,196.18 : x
  2. Step 2: Convert to fraction form
    81,120,783,447.54/121,595,293,861.77 = 27,286,670,196.18/x
  3. Step 3: Cross multiply
    81,120,783,447.54x = 121,595,293,861.77 × 27,286,670,196.18
  4. Step 4: Simplify right side
    81,120,783,447.54x = 3,317,930,681,013,708,521,472
  5. Step 5: Solve for x
    x = 3,317,930,681,013,708,521,472/81,120,783,447.54
  6. Step 6: Final answer
    x = 40,901,117,321.67

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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.