Home / 290,948,117.20-436,422,175.80-259,380,521.80

Finding the Fourth Proportional to 290,948,117.20, 436,422,175.80 and 259,380,521.80

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Solution

The fourth proportional to 290,948,117.20, 436,422,175.80 and 259,380,521.80 is: 389,070,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,948,117.20 : 436,422,175.80 = 259,380,521.80 : x
  2. Step 2: Convert to fraction form
    290,948,117.20/436,422,175.80 = 259,380,521.80/x
  3. Step 3: Cross multiply
    290,948,117.20x = 436,422,175.80 × 259,380,521.80
  4. Step 4: Simplify right side
    290,948,117.20x = 113,199,411,684,095,344
  5. Step 5: Solve for x
    x = 113,199,411,684,095,344/290,948,117.20
  6. Step 6: Final answer
    x = 389,070,782.70

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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.