Home / 143,856,421.20-215,642,914.20-71,084,433.60

Finding the Fourth Proportional to 143,856,421.20, 215,642,914.20 and 71,084,433.60

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Solution

The fourth proportional to 143,856,421.20, 215,642,914.20 and 71,084,433.60 is: 106,556,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,421.20 : 215,642,914.20 = 71,084,433.60 : x
  2. Step 2: Convert to fraction form
    143,856,421.20/215,642,914.20 = 71,084,433.60/x
  3. Step 3: Cross multiply
    143,856,421.20x = 215,642,914.20 × 71,084,433.60
  4. Step 4: Simplify right side
    143,856,421.20x = 15,328,854,415,760,394
  5. Step 5: Solve for x
    x = 15,328,854,415,760,394/143,856,421.20
  6. Step 6: Final answer
    x = 106,556,622.83

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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.