Home / 126,107,467.20-189,161,200.80-83,025,316.80

Finding the Fourth Proportional to 126,107,467.20, 189,161,200.80 and 83,025,316.80

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Solution

The fourth proportional to 126,107,467.20, 189,161,200.80 and 83,025,316.80 is: 124,537,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,107,467.20 : 189,161,200.80 = 83,025,316.80 : x
  2. Step 2: Convert to fraction form
    126,107,467.20/189,161,200.80 = 83,025,316.80/x
  3. Step 3: Cross multiply
    126,107,467.20x = 189,161,200.80 × 83,025,316.80
  4. Step 4: Simplify right side
    126,107,467.20x = 15,705,168,622,688,414
  5. Step 5: Solve for x
    x = 15,705,168,622,688,414/126,107,467.20
  6. Step 6: Final answer
    x = 124,537,975.20

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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.