Home / 20,951,710,135.56-28,909,043,825.22-12,039,317,019.72

Finding the Fourth Proportional to 20,951,710,135.56, 28,909,043,825.22 and 12,039,317,019.72

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Solution

The fourth proportional to 20,951,710,135.56, 28,909,043,825.22 and 12,039,317,019.72 is: 16,611,777,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951,710,135.56 : 28,909,043,825.22 = 12,039,317,019.72 : x
  2. Step 2: Convert to fraction form
    20,951,710,135.56/28,909,043,825.22 = 12,039,317,019.72/x
  3. Step 3: Cross multiply
    20,951,710,135.56x = 28,909,043,825.22 × 12,039,317,019.72
  4. Step 4: Simplify right side
    20,951,710,135.56x = 348,045,143,348,802,486,272
  5. Step 5: Solve for x
    x = 348,045,143,348,802,486,272/20,951,710,135.56
  6. Step 6: Final answer
    x = 16,611,777,324.95

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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.