Home / 143,856,422.20-215,642,915.70-71,084,434.60

Finding the Fourth Proportional to 143,856,422.20, 215,642,915.70 and 71,084,434.60

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Solution

The fourth proportional to 143,856,422.20, 215,642,915.70 and 71,084,434.60 is: 106,556,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,422.20 : 215,642,915.70 = 71,084,434.60 : x
  2. Step 2: Convert to fraction form
    143,856,422.20/215,642,915.70 = 71,084,434.60/x
  3. Step 3: Cross multiply
    143,856,422.20x = 215,642,915.70 × 71,084,434.60
  4. Step 4: Simplify right side
    143,856,422.20x = 15,328,854,738,029,962
  5. Step 5: Solve for x
    x = 15,328,854,738,029,962/143,856,422.20
  6. Step 6: Final answer
    x = 106,556,624.33

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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.