Finding the Fourth Proportional to 5,656,313.28, 7,805,876.58 and 3,078,160.32
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Solution
The fourth proportional to 5,656,313.28, 7,805,876.58 and 3,078,160.32 is: 4,247,950.63
Step by Step Solution
- Step 1: Write the proportion equation
5,656,313.28 : 7,805,876.58 = 3,078,160.32 : x - Step 2: Convert to fraction form
5,656,313.28/7,805,876.58 = 3,078,160.32/x - Step 3: Cross multiply
5,656,313.28x = 7,805,876.58 × 3,078,160.32 - Step 4: Simplify right side
5,656,313.28x = 24,027,739,551,373.30 - Step 5: Solve for x
x = 24,027,739,551,373.30/5,656,313.28 - Step 6: Final answer
x = 4,247,950.63
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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.