Home / 208,123,611,704.73-312,124,854,138.17-80,609,863,122.44

Finding the Fourth Proportional to 208,123,611,704.73, 312,124,854,138.17 and 80,609,863,122.44

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Solution

The fourth proportional to 208,123,611,704.73, 312,124,854,138.17 and 80,609,863,122.44 is: 120,891,337,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,123,611,704.73 : 312,124,854,138.17 = 80,609,863,122.44 : x
  2. Step 2: Convert to fraction form
    208,123,611,704.73/312,124,854,138.17 = 80,609,863,122.44/x
  3. Step 3: Cross multiply
    208,123,611,704.73x = 312,124,854,138.17 × 80,609,863,122.44
  4. Step 4: Simplify right side
    208,123,611,704.73x = 25,160,341,769,189,433,802,752
  5. Step 5: Solve for x
    x = 25,160,341,769,189,433,802,752/208,123,611,704.73
  6. Step 6: Final answer
    x = 120,891,337,427.32

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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.