Home / 398,698,858.20-598,160,261.70-194,233,603.80

Finding the Fourth Proportional to 398,698,858.20, 598,160,261.70 and 194,233,603.80

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Solution

The fourth proportional to 398,698,858.20, 598,160,261.70 and 194,233,603.80 is: 291,404,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,698,858.20 : 598,160,261.70 = 194,233,603.80 : x
  2. Step 2: Convert to fraction form
    398,698,858.20/598,160,261.70 = 194,233,603.80/x
  3. Step 3: Cross multiply
    398,698,858.20x = 598,160,261.70 × 194,233,603.80
  4. Step 4: Simplify right side
    398,698,858.20x = 116,182,823,279,942,128
  5. Step 5: Solve for x
    x = 116,182,823,279,942,128/398,698,858.20
  6. Step 6: Final answer
    x = 291,404,956.12

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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.