Home / 780,276,049.20-1,170,414,073.80-320,544,154.80

Finding the Fourth Proportional to 780,276,049.20, 1,170,414,073.80 and 320,544,154.80

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Solution

The fourth proportional to 780,276,049.20, 1,170,414,073.80 and 320,544,154.80 is: 480,816,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,276,049.20 : 1,170,414,073.80 = 320,544,154.80 : x
  2. Step 2: Convert to fraction form
    780,276,049.20/1,170,414,073.80 = 320,544,154.80/x
  3. Step 3: Cross multiply
    780,276,049.20x = 1,170,414,073.80 × 320,544,154.80
  4. Step 4: Simplify right side
    780,276,049.20x = 375,169,390,052,245,824
  5. Step 5: Solve for x
    x = 375,169,390,052,245,824/780,276,049.20
  6. Step 6: Final answer
    x = 480,816,232.20

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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.