Finding the Fourth Proportional to 5,471,994.40, 8,207,991.60 and 1,684,985.20
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Solution
The fourth proportional to 5,471,994.40, 8,207,991.60 and 1,684,985.20 is: 2,527,477.80
Step by Step Solution
- Step 1: Write the proportion equation
5,471,994.40 : 8,207,991.60 = 1,684,985.20 : x - Step 2: Convert to fraction form
5,471,994.40/8,207,991.60 = 1,684,985.20/x - Step 3: Cross multiply
5,471,994.40x = 8,207,991.60 × 1,684,985.20 - Step 4: Simplify right side
5,471,994.40x = 13,830,344,367,724.32 - Step 5: Solve for x
x = 13,830,344,367,724.32/5,471,994.40 - Step 6: Final answer
x = 2,527,477.80
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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.