Home / 149,120,466,396.46-205,786,235,757.08-80,531,872,910.98

Finding the Fourth Proportional to 149,120,466,396.46, 205,786,235,757.08 and 80,531,872,910.98

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Solution

The fourth proportional to 149,120,466,396.46, 205,786,235,757.08 and 80,531,872,910.98 is: 111,133,980,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,120,466,396.46 : 205,786,235,757.08 = 80,531,872,910.98 : x
  2. Step 2: Convert to fraction form
    149,120,466,396.46/205,786,235,757.08 = 80,531,872,910.98/x
  3. Step 3: Cross multiply
    149,120,466,396.46x = 205,786,235,757.08 × 80,531,872,910.98
  4. Step 4: Simplify right side
    149,120,466,396.46x = 16,572,350,984,818,131,992,576
  5. Step 5: Solve for x
    x = 16,572,350,984,818,131,992,576/149,120,466,396.46
  6. Step 6: Final answer
    x = 111,133,980,366.97

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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.