Home / 131,868,515.75-197,820,963.17-76,562,396.98

Finding the Fourth Proportional to 131,868,515.75, 197,820,963.17 and 76,562,396.98

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Solution

The fourth proportional to 131,868,515.75, 197,820,963.17 and 76,562,396.98 is: 114,854,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,868,515.75 : 197,820,963.17 = 76,562,396.98 : x
  2. Step 2: Convert to fraction form
    131,868,515.75/197,820,963.17 = 76,562,396.98/x
  3. Step 3: Cross multiply
    131,868,515.75x = 197,820,963.17 × 76,562,396.98
  4. Step 4: Simplify right side
    131,868,515.75x = 15,145,647,112,310,136
  5. Step 5: Solve for x
    x = 15,145,647,112,310,136/131,868,515.75
  6. Step 6: Final answer
    x = 114,854,156.25

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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.