Home / 100,101,037.80-150,151,556.70-80,617,492.20

Finding the Fourth Proportional to 100,101,037.80, 150,151,556.70 and 80,617,492.20

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Solution

The fourth proportional to 100,101,037.80, 150,151,556.70 and 80,617,492.20 is: 120,926,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,101,037.80 : 150,151,556.70 = 80,617,492.20 : x
  2. Step 2: Convert to fraction form
    100,101,037.80/150,151,556.70 = 80,617,492.20/x
  3. Step 3: Cross multiply
    100,101,037.80x = 150,151,556.70 × 80,617,492.20
  4. Step 4: Simplify right side
    100,101,037.80x = 12,104,841,951,080,108
  5. Step 5: Solve for x
    x = 12,104,841,951,080,108/100,101,037.80
  6. Step 6: Final answer
    x = 120,926,238.30

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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.