Home / 398,601,331.80-597,901,997.70-111,386,995.80

Finding the Fourth Proportional to 398,601,331.80, 597,901,997.70 and 111,386,995.80

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Solution

The fourth proportional to 398,601,331.80, 597,901,997.70 and 111,386,995.80 is: 167,080,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,601,331.80 : 597,901,997.70 = 111,386,995.80 : x
  2. Step 2: Convert to fraction form
    398,601,331.80/597,901,997.70 = 111,386,995.80/x
  3. Step 3: Cross multiply
    398,601,331.80x = 597,901,997.70 × 111,386,995.80
  4. Step 4: Simplify right side
    398,601,331.80x = 66,598,507,306,621,512
  5. Step 5: Solve for x
    x = 66,598,507,306,621,512/398,601,331.80
  6. Step 6: Final answer
    x = 167,080,493.70

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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.