Home / 143,510,829,383.12-198,045,024,007.66-77,517,003,807.68

Finding the Fourth Proportional to 143,510,829,383.12, 198,045,024,007.66 and 77,517,003,807.68

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Solution

The fourth proportional to 143,510,829,383.12, 198,045,024,007.66 and 77,517,003,807.68 is: 106,973,508,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,510,829,383.12 : 198,045,024,007.66 = 77,517,003,807.68 : x
  2. Step 2: Convert to fraction form
    143,510,829,383.12/198,045,024,007.66 = 77,517,003,807.68/x
  3. Step 3: Cross multiply
    143,510,829,383.12x = 198,045,024,007.66 × 77,517,003,807.68
  4. Step 4: Simplify right side
    143,510,829,383.12x = 15,351,856,880,093,856,006,144
  5. Step 5: Solve for x
    x = 15,351,856,880,093,856,006,144/143,510,829,383.12
  6. Step 6: Final answer
    x = 106,973,508,174.15

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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.