Finding the Fourth Proportional to 7,215,973.62, 10,827,517.24 and 3,378,056.18
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Solution
The fourth proportional to 7,215,973.62, 10,827,517.24 and 3,378,056.18 is: 5,068,749.34
Step by Step Solution
- Step 1: Write the proportion equation
7,215,973.62 : 10,827,517.24 = 3,378,056.18 : x - Step 2: Convert to fraction form
7,215,973.62/10,827,517.24 = 3,378,056.18/x - Step 3: Cross multiply
7,215,973.62x = 10,827,517.24 × 3,378,056.18 - Step 4: Simplify right side
7,215,973.62x = 36,575,961,526,638.55 - Step 5: Solve for x
x = 36,575,961,526,638.55/7,215,973.62 - Step 6: Final answer
x = 5,068,749.34
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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.