Home / 100,631,190.80-150,946,786.20-76,444,720.40

Finding the Fourth Proportional to 100,631,190.80, 150,946,786.20 and 76,444,720.40

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Solution

The fourth proportional to 100,631,190.80, 150,946,786.20 and 76,444,720.40 is: 114,667,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,631,190.80 : 150,946,786.20 = 76,444,720.40 : x
  2. Step 2: Convert to fraction form
    100,631,190.80/150,946,786.20 = 76,444,720.40/x
  3. Step 3: Cross multiply
    100,631,190.80x = 150,946,786.20 × 76,444,720.40
  4. Step 4: Simplify right side
    100,631,190.80x = 11,539,084,866,337,578
  5. Step 5: Solve for x
    x = 11,539,084,866,337,578/100,631,190.80
  6. Step 6: Final answer
    x = 114,667,080.60

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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.