Home / 125,632,511.40-188,216,523.90-71,619,378.60

Finding the Fourth Proportional to 125,632,511.40, 188,216,523.90 and 71,619,378.60

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Solution

The fourth proportional to 125,632,511.40, 188,216,523.90 and 71,619,378.60 is: 107,296,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,632,511.40 : 188,216,523.90 = 71,619,378.60 : x
  2. Step 2: Convert to fraction form
    125,632,511.40/188,216,523.90 = 71,619,378.60/x
  3. Step 3: Cross multiply
    125,632,511.40x = 188,216,523.90 × 71,619,378.60
  4. Step 4: Simplify right side
    125,632,511.40x = 13,479,950,483,970,048
  5. Step 5: Solve for x
    x = 13,479,950,483,970,048/125,632,511.40
  6. Step 6: Final answer
    x = 107,296,672.92

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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.