Home / 100,631,245.80-150,946,868.70-76,444,775.40

Finding the Fourth Proportional to 100,631,245.80, 150,946,868.70 and 76,444,775.40

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Solution

The fourth proportional to 100,631,245.80, 150,946,868.70 and 76,444,775.40 is: 114,667,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,631,245.80 : 150,946,868.70 = 76,444,775.40 : x
  2. Step 2: Convert to fraction form
    100,631,245.80/150,946,868.70 = 76,444,775.40/x
  3. Step 3: Cross multiply
    100,631,245.80x = 150,946,868.70 × 76,444,775.40
  4. Step 4: Simplify right side
    100,631,245.80x = 11,539,099,475,104,790
  5. Step 5: Solve for x
    x = 11,539,099,475,104,790/100,631,245.80
  6. Step 6: Final answer
    x = 114,667,163.10

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1.5x scale

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.