Home / 290,948,114.20-436,422,171.30-259,380,518.80

Finding the Fourth Proportional to 290,948,114.20, 436,422,171.30 and 259,380,518.80

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Solution

The fourth proportional to 290,948,114.20, 436,422,171.30 and 259,380,518.80 is: 389,070,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,948,114.20 : 436,422,171.30 = 259,380,518.80 : x
  2. Step 2: Convert to fraction form
    290,948,114.20/436,422,171.30 = 259,380,518.80/x
  3. Step 3: Cross multiply
    290,948,114.20x = 436,422,171.30 × 259,380,518.80
  4. Step 4: Simplify right side
    290,948,114.20x = 113,199,409,207,616,480
  5. Step 5: Solve for x
    x = 113,199,409,207,616,480/290,948,114.20
  6. Step 6: Final answer
    x = 389,070,778.20

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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.