Finding the Fourth Proportional to 5,215,671.48, 7,198,068.74 and 2,893,312.26
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Solution
The fourth proportional to 5,215,671.48, 7,198,068.74 and 2,893,312.26 is: 3,993,016.17
Step by Step Solution
- Step 1: Write the proportion equation
5,215,671.48 : 7,198,068.74 = 2,893,312.26 : x - Step 2: Convert to fraction form
5,215,671.48/7,198,068.74 = 2,893,312.26/x - Step 3: Cross multiply
5,215,671.48x = 7,198,068.74 × 2,893,312.26 - Step 4: Simplify right side
5,215,671.48x = 20,826,260,533,764.75 - Step 5: Solve for x
x = 20,826,260,533,764.75/5,215,671.48 - Step 6: Final answer
x = 3,993,016.17
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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.