Finding the Fourth Proportional to 7,281,445.75, 10,048,636.49 and 3,973,921.09
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Solution
The fourth proportional to 7,281,445.75, 10,048,636.49 and 3,973,921.09 is: 5,484,142.83
Step by Step Solution
- Step 1: Write the proportion equation
7,281,445.75 : 10,048,636.49 = 3,973,921.09 : x - Step 2: Convert to fraction form
7,281,445.75/10,048,636.49 = 3,973,921.09/x - Step 3: Cross multiply
7,281,445.75x = 10,048,636.49 × 3,973,921.09 - Step 4: Simplify right side
7,281,445.75x = 39,932,488,493,109.87 - Step 5: Solve for x
x = 39,932,488,493,109.87/7,281,445.75 - Step 6: Final answer
x = 5,484,142.83
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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.