Home / 80,689,850.19-121,034,372.73-31,510,700.31

Finding the Fourth Proportional to 80,689,850.19, 121,034,372.73 and 31,510,700.31

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Solution

The fourth proportional to 80,689,850.19, 121,034,372.73 and 31,510,700.31 is: 47,265,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,689,850.19 : 121,034,372.73 = 31,510,700.31 : x
  2. Step 2: Convert to fraction form
    80,689,850.19/121,034,372.73 = 31,510,700.31/x
  3. Step 3: Cross multiply
    80,689,850.19x = 121,034,372.73 × 31,510,700.31
  4. Step 4: Simplify right side
    80,689,850.19x = 3,813,877,846,433,337.50
  5. Step 5: Solve for x
    x = 3,813,877,846,433,337.50/80,689,850.19
  6. Step 6: Final answer
    x = 47,265,893.26

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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.