Home / 208,123,611,700.79-312,124,854,132.24-80,609,863,118.46

Finding the Fourth Proportional to 208,123,611,700.79, 312,124,854,132.24 and 80,609,863,118.46

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Solution

The fourth proportional to 208,123,611,700.79, 312,124,854,132.24 and 80,609,863,118.46 is: 120,891,337,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,123,611,700.79 : 312,124,854,132.24 = 80,609,863,118.46 : x
  2. Step 2: Convert to fraction form
    208,123,611,700.79/312,124,854,132.24 = 80,609,863,118.46/x
  3. Step 3: Cross multiply
    208,123,611,700.79x = 312,124,854,132.24 × 80,609,863,118.46
  4. Step 4: Simplify right side
    208,123,611,700.79x = 25,160,341,767,469,160,988,672
  5. Step 5: Solve for x
    x = 25,160,341,767,469,160,988,672/208,123,611,700.79
  6. Step 6: Final answer
    x = 120,891,337,421.35

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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.