Finding the Fourth Proportional to 3,167,786.95, 4,371,638.19 and 1,791,101.09
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Solution
The fourth proportional to 3,167,786.95, 4,371,638.19 and 1,791,101.09 is: 2,471,771.63
Step by Step Solution
- Step 1: Write the proportion equation
3,167,786.95 : 4,371,638.19 = 1,791,101.09 : x - Step 2: Convert to fraction form
3,167,786.95/4,371,638.19 = 1,791,101.09/x - Step 3: Cross multiply
3,167,786.95x = 4,371,638.19 × 1,791,101.09 - Step 4: Simplify right side
3,167,786.95x = 7,830,045,927,194.63 - Step 5: Solve for x
x = 7,830,045,927,194.63/3,167,786.95 - Step 6: Final answer
x = 2,471,771.63
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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.