Home / 126,014,700.80-189,022,051.20-115,244,163.20

Finding the Fourth Proportional to 126,014,700.80, 189,022,051.20 and 115,244,163.20

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Solution

The fourth proportional to 126,014,700.80, 189,022,051.20 and 115,244,163.20 is: 172,866,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,014,700.80 : 189,022,051.20 = 115,244,163.20 : x
  2. Step 2: Convert to fraction form
    126,014,700.80/189,022,051.20 = 115,244,163.20/x
  3. Step 3: Cross multiply
    126,014,700.80x = 189,022,051.20 × 115,244,163.20
  4. Step 4: Simplify right side
    126,014,700.80x = 21,783,688,116,891,556
  5. Step 5: Solve for x
    x = 21,783,688,116,891,556/126,014,700.80
  6. Step 6: Final answer
    x = 172,866,244.80

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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.