Home / 8,212,923,742.15-12,319,250,988.30-2,616,784,809.12

Finding the Fourth Proportional to 8,212,923,742.15, 12,319,250,988.30 and 2,616,784,809.12

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Solution

The fourth proportional to 8,212,923,742.15, 12,319,250,988.30 and 2,616,784,809.12 is: 3,925,134,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212,923,742.15 : 12,319,250,988.30 = 2,616,784,809.12 : x
  2. Step 2: Convert to fraction form
    8,212,923,742.15/12,319,250,988.30 = 2,616,784,809.12/x
  3. Step 3: Cross multiply
    8,212,923,742.15x = 12,319,250,988.30 × 2,616,784,809.12
  4. Step 4: Simplify right side
    8,212,923,742.15x = 32,236,828,845,919,981,568
  5. Step 5: Solve for x
    x = 32,236,828,845,919,981,568/8,212,923,742.15
  6. Step 6: Final answer
    x = 3,925,134,319.76

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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.