Finding the Fourth Proportional to 5,355,063.48, 7,389,911.94 and 3,031,896.12
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Solution
The fourth proportional to 5,355,063.48, 7,389,911.94 and 3,031,896.12 is: 4,183,973.81
Step by Step Solution
- Step 1: Write the proportion equation
5,355,063.48 : 7,389,911.94 = 3,031,896.12 : x - Step 2: Convert to fraction form
5,355,063.48/7,389,911.94 = 3,031,896.12/x - Step 3: Cross multiply
5,355,063.48x = 7,389,911.94 × 3,031,896.12 - Step 4: Simplify right side
5,355,063.48x = 22,405,445,338,027.68 - Step 5: Solve for x
x = 22,405,445,338,027.68/5,355,063.48 - Step 6: Final answer
x = 4,183,973.81
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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.