Finding the Fourth Proportional to 5,131,087.95, 7,081,652.57 and 2,955,207.63
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Solution
The fourth proportional to 5,131,087.95, 7,081,652.57 and 2,955,207.63 is: 4,078,619.18
Step by Step Solution
- Step 1: Write the proportion equation
5,131,087.95 : 7,081,652.57 = 2,955,207.63 : x - Step 2: Convert to fraction form
5,131,087.95/7,081,652.57 = 2,955,207.63/x - Step 3: Cross multiply
5,131,087.95x = 7,081,652.57 × 2,955,207.63 - Step 4: Simplify right side
5,131,087.95x = 20,927,753,707,873.11 - Step 5: Solve for x
x = 20,927,753,707,873.11/5,131,087.95 - Step 6: Final answer
x = 4,078,619.18
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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.