Finding the Fourth Proportional to 5,302,533.60, 7,318,120.62 and 2,979,431.12
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Solution
The fourth proportional to 5,302,533.60, 7,318,120.62 and 2,979,431.12 is: 4,111,965.70
Step by Step Solution
- Step 1: Write the proportion equation
5,302,533.60 : 7,318,120.62 = 2,979,431.12 : x - Step 2: Convert to fraction form
5,302,533.60/7,318,120.62 = 2,979,431.12/x - Step 3: Cross multiply
5,302,533.60x = 7,318,120.62 × 2,979,431.12 - Step 4: Simplify right side
5,302,533.60x = 21,803,836,278,551.09 - Step 5: Solve for x
x = 21,803,836,278,551.09/5,302,533.60 - Step 6: Final answer
x = 4,111,965.70
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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.