Home / 86,737,609.89-129,907,835.24-43,619,067.81

Finding the Fourth Proportional to 86,737,609.89, 129,907,835.24 and 43,619,067.81

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Solution

The fourth proportional to 86,737,609.89, 129,907,835.24 and 43,619,067.81 is: 65,328,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,737,609.89 : 129,907,835.24 = 43,619,067.81 : x
  2. Step 2: Convert to fraction form
    86,737,609.89/129,907,835.24 = 43,619,067.81/x
  3. Step 3: Cross multiply
    86,737,609.89x = 129,907,835.24 × 43,619,067.81
  4. Step 4: Simplify right side
    86,737,609.89x = 5,666,458,674,165,773
  5. Step 5: Solve for x
    x = 5,666,458,674,165,773/86,737,609.89
  6. Step 6: Final answer
    x = 65,328,738.96

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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.