Home / 398,692,887.20-598,151,305.20-194,227,632.80

Finding the Fourth Proportional to 398,692,887.20, 598,151,305.20 and 194,227,632.80

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Solution

The fourth proportional to 398,692,887.20, 598,151,305.20 and 194,227,632.80 is: 291,395,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,692,887.20 : 598,151,305.20 = 194,227,632.80 : x
  2. Step 2: Convert to fraction form
    398,692,887.20/598,151,305.20 = 194,227,632.80/x
  3. Step 3: Cross multiply
    398,692,887.20x = 598,151,305.20 × 194,227,632.80
  4. Step 4: Simplify right side
    398,692,887.20x = 116,177,512,065,226,352
  5. Step 5: Solve for x
    x = 116,177,512,065,226,352/398,692,887.20
  6. Step 6: Final answer
    x = 291,395,998.76

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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.