Finding the Fourth Proportional to 6,378,314.40, 8,802,115.44 and 3,477,753.12
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Solution
The fourth proportional to 6,378,314.40, 8,802,115.44 and 3,477,753.12 is: 4,799,321.97
Step by Step Solution
- Step 1: Write the proportion equation
6,378,314.40 : 8,802,115.44 = 3,477,753.12 : x - Step 2: Convert to fraction form
6,378,314.40/8,802,115.44 = 3,477,753.12/x - Step 3: Cross multiply
6,378,314.40x = 8,802,115.44 × 3,477,753.12 - Step 4: Simplify right side
6,378,314.40x = 30,611,584,434,060.17 - Step 5: Solve for x
x = 30,611,584,434,060.17/6,378,314.40 - Step 6: Final answer
x = 4,799,321.97
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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.