Finding the Fourth Proportional to 8,371,409.40, 12,557,114.10 and 2,692,207.80
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Solution
The fourth proportional to 8,371,409.40, 12,557,114.10 and 2,692,207.80 is: 4,038,311.70
Step by Step Solution
- Step 1: Write the proportion equation
8,371,409.40 : 12,557,114.10 = 2,692,207.80 : x - Step 2: Convert to fraction form
8,371,409.40/12,557,114.10 = 2,692,207.80/x - Step 3: Cross multiply
8,371,409.40x = 12,557,114.10 × 2,692,207.80 - Step 4: Simplify right side
8,371,409.40x = 33,806,360,525,509.98 - Step 5: Solve for x
x = 33,806,360,525,509.98/8,371,409.40 - Step 6: Final answer
x = 4,038,311.70
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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.