Home / 20,717,890,463.43-28,591,061,200.46-12,150,496,311.39

Finding the Fourth Proportional to 20,717,890,463.43, 28,591,061,200.46 and 12,150,496,311.39

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Solution

The fourth proportional to 20,717,890,463.43, 28,591,061,200.46 and 12,150,496,311.39 is: 16,767,903,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717,890,463.43 : 28,591,061,200.46 = 12,150,496,311.39 : x
  2. Step 2: Convert to fraction form
    20,717,890,463.43/28,591,061,200.46 = 12,150,496,311.39/x
  3. Step 3: Cross multiply
    20,717,890,463.43x = 28,591,061,200.46 × 12,150,496,311.39
  4. Step 4: Simplify right side
    20,717,890,463.43x = 347,395,583,654,854,197,248
  5. Step 5: Solve for x
    x = 347,395,583,654,854,197,248/20,717,890,463.43
  6. Step 6: Final answer
    x = 16,767,903,289.58

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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.