Finding the Fourth Proportional to 5,481,513.84, 7,562,749.62 and 3,189,231.60
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Solution
The fourth proportional to 5,481,513.84, 7,562,749.62 and 3,189,231.60 is: 4,400,127.55
Step by Step Solution
- Step 1: Write the proportion equation
5,481,513.84 : 7,562,749.62 = 3,189,231.60 : x - Step 2: Convert to fraction form
5,481,513.84/7,562,749.62 = 3,189,231.60/x - Step 3: Cross multiply
5,481,513.84x = 7,562,749.62 × 3,189,231.60 - Step 4: Simplify right side
5,481,513.84x = 24,119,360,070,991.99 - Step 5: Solve for x
x = 24,119,360,070,991.99/5,481,513.84 - Step 6: Final answer
x = 4,400,127.55
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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.