Finding the Fourth Proportional to 3,749,306.18, 5,173,742.88 and 2,117,871.63
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Solution
The fourth proportional to 3,749,306.18, 5,173,742.88 and 2,117,871.63 is: 2,922,493.59
Step by Step Solution
- Step 1: Write the proportion equation
3,749,306.18 : 5,173,742.88 = 2,117,871.63 : x - Step 2: Convert to fraction form
3,749,306.18/5,173,742.88 = 2,117,871.63/x - Step 3: Cross multiply
3,749,306.18x = 5,173,742.88 × 2,117,871.63 - Step 4: Simplify right side
3,749,306.18x = 10,957,323,266,466.49 - Step 5: Solve for x
x = 10,957,323,266,466.49/3,749,306.18 - Step 6: Final answer
x = 2,922,493.59
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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.