Home / 275,480,678.46-380,155,571.46-150,030,042.78

Finding the Fourth Proportional to 275,480,678.46, 380,155,571.46 and 150,030,042.78

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Solution

The fourth proportional to 275,480,678.46, 380,155,571.46 and 150,030,042.78 is: 207,037,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,480,678.46 : 380,155,571.46 = 150,030,042.78 : x
  2. Step 2: Convert to fraction form
    275,480,678.46/380,155,571.46 = 150,030,042.78/x
  3. Step 3: Cross multiply
    275,480,678.46x = 380,155,571.46 × 150,030,042.78
  4. Step 4: Simplify right side
    275,480,678.46x = 57,034,756,649,199,144
  5. Step 5: Solve for x
    x = 57,034,756,649,199,144/275,480,678.46
  6. Step 6: Final answer
    x = 207,037,230.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.