Home / 208,123,611,704.46-312,124,854,137.79-80,609,863,122.17

Finding the Fourth Proportional to 208,123,611,704.46, 312,124,854,137.79 and 80,609,863,122.17

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Solution

The fourth proportional to 208,123,611,704.46, 312,124,854,137.79 and 80,609,863,122.17 is: 120,891,337,426.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,123,611,704.46 : 312,124,854,137.79 = 80,609,863,122.17 : x
  2. Step 2: Convert to fraction form
    208,123,611,704.46/312,124,854,137.79 = 80,609,863,122.17/x
  3. Step 3: Cross multiply
    208,123,611,704.46x = 312,124,854,137.79 × 80,609,863,122.17
  4. Step 4: Simplify right side
    208,123,611,704.46x = 25,160,341,769,075,466,174,464
  5. Step 5: Solve for x
    x = 25,160,341,769,075,466,174,464/208,123,611,704.46
  6. Step 6: Final answer
    x = 120,891,337,426.93

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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.