Home / 382,281,976.90-573,646,914.15-139,969,375.30

Finding the Fourth Proportional to 382,281,976.90, 573,646,914.15 and 139,969,375.30

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Solution

The fourth proportional to 382,281,976.90, 573,646,914.15 and 139,969,375.30 is: 210,036,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,281,976.90 : 573,646,914.15 = 139,969,375.30 : x
  2. Step 2: Convert to fraction form
    382,281,976.90/573,646,914.15 = 139,969,375.30/x
  3. Step 3: Cross multiply
    382,281,976.90x = 573,646,914.15 × 139,969,375.30
  4. Step 4: Simplify right side
    382,281,976.90x = 80,293,000,216,348,240
  5. Step 5: Solve for x
    x = 80,293,000,216,348,240/382,281,976.90
  6. Step 6: Final answer
    x = 210,036,059.95

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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.