Finding the Fourth Proportional to 7,776,014.40, 11,664,021.60 and 3,949,639.20
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Solution
The fourth proportional to 7,776,014.40, 11,664,021.60 and 3,949,639.20 is: 5,924,458.80
Step by Step Solution
- Step 1: Write the proportion equation
7,776,014.40 : 11,664,021.60 = 3,949,639.20 : x - Step 2: Convert to fraction form
7,776,014.40/11,664,021.60 = 3,949,639.20/x - Step 3: Cross multiply
7,776,014.40x = 11,664,021.60 × 3,949,639.20 - Step 4: Simplify right side
7,776,014.40x = 46,068,676,941,006.72 - Step 5: Solve for x
x = 46,068,676,941,006.72/7,776,014.40 - Step 6: Final answer
x = 5,924,458.80
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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.