Home / 393,198,291.83-542,626,675.56-214,591,960.02

Finding the Fourth Proportional to 393,198,291.83, 542,626,675.56 and 214,591,960.02

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Solution

The fourth proportional to 393,198,291.83, 542,626,675.56 and 214,591,960.02 is: 296,144,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,198,291.83 : 542,626,675.56 = 214,591,960.02 : x
  2. Step 2: Convert to fraction form
    393,198,291.83/542,626,675.56 = 214,591,960.02/x
  3. Step 3: Cross multiply
    393,198,291.83x = 542,626,675.56 × 214,591,960.02
  4. Step 4: Simplify right side
    393,198,291.83x = 116,443,321,869,591,872
  5. Step 5: Solve for x
    x = 116,443,321,869,591,872/393,198,291.83
  6. Step 6: Final answer
    x = 296,144,017.63

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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.