Home / 87,483,912.30-131,225,868.45-68,210,318.70

Finding the Fourth Proportional to 87,483,912.30, 131,225,868.45 and 68,210,318.70

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Solution

The fourth proportional to 87,483,912.30, 131,225,868.45 and 68,210,318.70 is: 102,315,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,483,912.30 : 131,225,868.45 = 68,210,318.70 : x
  2. Step 2: Convert to fraction form
    87,483,912.30/131,225,868.45 = 68,210,318.70/x
  3. Step 3: Cross multiply
    87,483,912.30x = 131,225,868.45 × 68,210,318.70
  4. Step 4: Simplify right side
    87,483,912.30x = 8,950,958,308,658,776
  5. Step 5: Solve for x
    x = 8,950,958,308,658,776/87,483,912.30
  6. Step 6: Final answer
    x = 102,315,478.05

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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.