Home / 143,737,015,509.22-197,318,379,556.32-123,379,128,206.68

Finding the Fourth Proportional to 143,737,015,509.22, 197,318,379,556.32 and 123,379,128,206.68

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Solution

The fourth proportional to 143,737,015,509.22, 197,318,379,556.32 and 123,379,128,206.68 is: 169,371,609,411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,737,015,509.22 : 197,318,379,556.32 = 123,379,128,206.68 : x
  2. Step 2: Convert to fraction form
    143,737,015,509.22/197,318,379,556.32 = 123,379,128,206.68/x
  3. Step 3: Cross multiply
    143,737,015,509.22x = 197,318,379,556.32 × 123,379,128,206.68
  4. Step 4: Simplify right side
    143,737,015,509.22x = 24,344,969,648,813,551,648,768
  5. Step 5: Solve for x
    x = 24,344,969,648,813,551,648,768/143,737,015,509.22
  6. Step 6: Final answer
    x = 169,371,609,411.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.