Home / 15,645,379.74-21,590,556.08-8,769,861.80

Finding the Fourth Proportional to 15,645,379.74, 21,590,556.08 and 8,769,861.80

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Solution

The fourth proportional to 15,645,379.74, 21,590,556.08 and 8,769,861.80 is: 12,102,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645,379.74 : 21,590,556.08 = 8,769,861.80 : x
  2. Step 2: Convert to fraction form
    15,645,379.74/21,590,556.08 = 8,769,861.80/x
  3. Step 3: Cross multiply
    15,645,379.74x = 21,590,556.08 × 8,769,861.80
  4. Step 4: Simplify right side
    15,645,379.74x = 189,346,192,935,912.25
  5. Step 5: Solve for x
    x = 189,346,192,935,912.25/15,645,379.74
  6. Step 6: Final answer
    x = 12,102,371.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.