Finding the Fourth Proportional to 4,086,386.80, 5,639,213.76 and 2,368,503.76
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Solution
The fourth proportional to 4,086,386.80, 5,639,213.76 and 2,368,503.76 is: 3,268,535.17
Step by Step Solution
- Step 1: Write the proportion equation
4,086,386.80 : 5,639,213.76 = 2,368,503.76 : x - Step 2: Convert to fraction form
4,086,386.80/5,639,213.76 = 2,368,503.76/x - Step 3: Cross multiply
4,086,386.80x = 5,639,213.76 × 2,368,503.76 - Step 4: Simplify right side
4,086,386.80x = 13,356,498,994,003.74 - Step 5: Solve for x
x = 13,356,498,994,003.74/4,086,386.80 - Step 6: Final answer
x = 3,268,535.17
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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.