Home / 20,951,707,529.60-28,909,040,236.96-12,039,314,413.76

Finding the Fourth Proportional to 20,951,707,529.60, 28,909,040,236.96 and 12,039,314,413.76

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Solution

The fourth proportional to 20,951,707,529.60, 28,909,040,236.96 and 12,039,314,413.76 is: 16,611,773,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951,707,529.60 : 28,909,040,236.96 = 12,039,314,413.76 : x
  2. Step 2: Convert to fraction form
    20,951,707,529.60/28,909,040,236.96 = 12,039,314,413.76/x
  3. Step 3: Cross multiply
    20,951,707,529.60x = 28,909,040,236.96 × 12,039,314,413.76
  4. Step 4: Simplify right side
    20,951,707,529.60x = 348,045,024,812,800,344,064
  5. Step 5: Solve for x
    x = 348,045,024,812,800,344,064/20,951,707,529.60
  6. Step 6: Final answer
    x = 16,611,773,733.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.