Finding the Fourth Proportional to 5,173,513.30, 7,139,162.09 and 2,849,948.99
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Solution
The fourth proportional to 5,173,513.30, 7,139,162.09 and 2,849,948.99 is: 3,932,771.91
Step by Step Solution
- Step 1: Write the proportion equation
5,173,513.30 : 7,139,162.09 = 2,849,948.99 : x - Step 2: Convert to fraction form
5,173,513.30/7,139,162.09 = 2,849,948.99/x - Step 3: Cross multiply
5,173,513.30x = 7,139,162.09 × 2,849,948.99 - Step 4: Simplify right side
5,173,513.30x = 20,346,247,759,270.85 - Step 5: Solve for x
x = 20,346,247,759,270.85/5,173,513.30 - Step 6: Final answer
x = 3,932,771.91
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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.