Finding the Fourth Proportional to 55,581,121.14, 76,701,010.75 and 30,801,257.50
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Solution
The fourth proportional to 55,581,121.14, 76,701,010.75 and 30,801,257.50 is: 42,505,216.41
Step by Step Solution
- Step 1: Write the proportion equation
55,581,121.14 : 76,701,010.75 = 30,801,257.50 : x - Step 2: Convert to fraction form
55,581,121.14/76,701,010.75 = 30,801,257.50/x - Step 3: Cross multiply
55,581,121.14x = 76,701,010.75 × 30,801,257.50 - Step 4: Simplify right side
55,581,121.14x = 2,362,487,582,621,018 - Step 5: Solve for x
x = 2,362,487,582,621,018/55,581,121.14 - Step 6: Final answer
x = 42,505,216.41
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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.