Finding the Fourth Proportional to 2,670,914.18, 3,685,930.18 and 1,638,992.09
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Solution
The fourth proportional to 2,670,914.18, 3,685,930.18 and 1,638,992.09 is: 2,261,851.19
Step by Step Solution
- Step 1: Write the proportion equation
2,670,914.18 : 3,685,930.18 = 1,638,992.09 : x - Step 2: Convert to fraction form
2,670,914.18/3,685,930.18 = 1,638,992.09/x - Step 3: Cross multiply
2,670,914.18x = 3,685,930.18 × 1,638,992.09 - Step 4: Simplify right side
2,670,914.18x = 6,041,210,414,429.62 - Step 5: Solve for x
x = 6,041,210,414,429.62/2,670,914.18 - Step 6: Final answer
x = 2,261,851.19
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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.