Home / 143,235,611,352.11-197,665,758,190.61-78,131,457,422.77

Finding the Fourth Proportional to 143,235,611,352.11, 197,665,758,190.61 and 78,131,457,422.77

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Solution

The fourth proportional to 143,235,611,352.11, 197,665,758,190.61 and 78,131,457,422.77 is: 107,821,746,451.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,235,611,352.11 : 197,665,758,190.61 = 78,131,457,422.77 : x
  2. Step 2: Convert to fraction form
    143,235,611,352.11/197,665,758,190.61 = 78,131,457,422.77/x
  3. Step 3: Cross multiply
    143,235,611,352.11x = 197,665,758,190.61 × 78,131,457,422.77
  4. Step 4: Simplify right side
    143,235,611,352.11x = 15,443,913,770,008,206,901,248
  5. Step 5: Solve for x
    x = 15,443,913,770,008,206,901,248/143,235,611,352.11
  6. Step 6: Final answer
    x = 107,821,746,451.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.