Finding the Fourth Proportional to 12,318,534.19, 16,999,687.26 and 6,812,279.48
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Solution
The fourth proportional to 12,318,534.19, 16,999,687.26 and 6,812,279.48 is: 9,401,006.56
Step by Step Solution
- Step 1: Write the proportion equation
12,318,534.19 : 16,999,687.26 = 6,812,279.48 : x - Step 2: Convert to fraction form
12,318,534.19/16,999,687.26 = 6,812,279.48/x - Step 3: Cross multiply
12,318,534.19x = 16,999,687.26 × 6,812,279.48 - Step 4: Simplify right side
12,318,534.19x = 115,806,620,687,715.44 - Step 5: Solve for x
x = 115,806,620,687,715.44/12,318,534.19 - Step 6: Final answer
x = 9,401,006.56
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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.