Home / 12,889,558.39-17,782,556.23-7,379,988.70

Finding the Fourth Proportional to 12,889,558.39, 17,782,556.23 and 7,379,988.70

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Solution

The fourth proportional to 12,889,558.39, 17,782,556.23 and 7,379,988.70 is: 10,181,501.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,558.39 : 17,782,556.23 = 7,379,988.70 : x
  2. Step 2: Convert to fraction form
    12,889,558.39/17,782,556.23 = 7,379,988.70/x
  3. Step 3: Cross multiply
    12,889,558.39x = 17,782,556.23 × 7,379,988.70
  4. Step 4: Simplify right side
    12,889,558.39x = 131,235,064,034,514.61
  5. Step 5: Solve for x
    x = 131,235,064,034,514.61/12,889,558.39
  6. Step 6: Final answer
    x = 10,181,501.96

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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.