Finding the Fourth Proportional to 6,402,638.49, 9,603,974.13 and 2,616,121.36
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Solution
The fourth proportional to 6,402,638.49, 9,603,974.13 and 2,616,121.36 is: 3,924,188.74
Step by Step Solution
- Step 1: Write the proportion equation
6,402,638.49 : 9,603,974.13 = 2,616,121.36 : x - Step 2: Convert to fraction form
6,402,638.49/9,603,974.13 = 2,616,121.36/x - Step 3: Cross multiply
6,402,638.49x = 9,603,974.13 × 2,616,121.36 - Step 4: Simplify right side
6,402,638.49x = 25,125,161,862,380.42 - Step 5: Solve for x
x = 25,125,161,862,380.42/6,402,638.49 - Step 6: Final answer
x = 3,924,188.74
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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.