Finding the Fourth Proportional to 7,268,542.20, 10,902,813.30 and 4,427,191.80
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Solution
The fourth proportional to 7,268,542.20, 10,902,813.30 and 4,427,191.80 is: 6,640,787.70
Step by Step Solution
- Step 1: Write the proportion equation
7,268,542.20 : 10,902,813.30 = 4,427,191.80 : x - Step 2: Convert to fraction form
7,268,542.20/10,902,813.30 = 4,427,191.80/x - Step 3: Cross multiply
7,268,542.20x = 10,902,813.30 × 4,427,191.80 - Step 4: Simplify right side
7,268,542.20x = 48,268,845,638,690.94 - Step 5: Solve for x
x = 48,268,845,638,690.94/7,268,542.20 - Step 6: Final answer
x = 6,640,787.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.