Home / 143,510,829,397.31-198,045,024,027.22-77,517,003,821.89

Finding the Fourth Proportional to 143,510,829,397.31, 198,045,024,027.22 and 77,517,003,821.89

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Solution

The fourth proportional to 143,510,829,397.31, 198,045,024,027.22 and 77,517,003,821.89 is: 106,973,508,193.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,510,829,397.31 : 198,045,024,027.22 = 77,517,003,821.89 : x
  2. Step 2: Convert to fraction form
    143,510,829,397.31/198,045,024,027.22 = 77,517,003,821.89/x
  3. Step 3: Cross multiply
    143,510,829,397.31x = 198,045,024,027.22 × 77,517,003,821.89
  4. Step 4: Simplify right side
    143,510,829,397.31x = 15,351,856,884,424,309,211,136
  5. Step 5: Solve for x
    x = 15,351,856,884,424,309,211,136/143,510,829,397.31
  6. Step 6: Final answer
    x = 106,973,508,193.75

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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.