Home / 199,290,679.20-298,936,018.80-122,364,266.40

Finding the Fourth Proportional to 199,290,679.20, 298,936,018.80 and 122,364,266.40

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Solution

The fourth proportional to 199,290,679.20, 298,936,018.80 and 122,364,266.40 is: 183,546,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,290,679.20 : 298,936,018.80 = 122,364,266.40 : x
  2. Step 2: Convert to fraction form
    199,290,679.20/298,936,018.80 = 122,364,266.40/x
  3. Step 3: Cross multiply
    199,290,679.20x = 298,936,018.80 × 122,364,266.40
  4. Step 4: Simplify right side
    199,290,679.20x = 36,579,086,640,998,608
  5. Step 5: Solve for x
    x = 36,579,086,640,998,608/199,290,679.20
  6. Step 6: Final answer
    x = 183,546,399.60

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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.