Finding the Fourth Proportional to 3,851,663.47, 5,315,230.49 and 2,132,747.08
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Solution
The fourth proportional to 3,851,663.47, 5,315,230.49 and 2,132,747.08 is: 2,943,154.92
Step by Step Solution
- Step 1: Write the proportion equation
3,851,663.47 : 5,315,230.49 = 2,132,747.08 : x - Step 2: Convert to fraction form
3,851,663.47/5,315,230.49 = 2,132,747.08/x - Step 3: Cross multiply
3,851,663.47x = 5,315,230.49 × 2,132,747.08 - Step 4: Simplify right side
3,851,663.47x = 11,336,042,283,122.66 - Step 5: Solve for x
x = 11,336,042,283,122.66/3,851,663.47 - Step 6: Final answer
x = 2,943,154.92
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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.