Finding the Fourth Proportional to 3,138,701.03, 4,330,891.65 and 1,849,366.12
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Solution
The fourth proportional to 3,138,701.03, 4,330,891.65 and 1,849,366.12 is: 2,551,821.35
Step by Step Solution
- Step 1: Write the proportion equation
3,138,701.03 : 4,330,891.65 = 1,849,366.12 : x - Step 2: Convert to fraction form
3,138,701.03/4,330,891.65 = 1,849,366.12/x - Step 3: Cross multiply
3,138,701.03x = 4,330,891.65 × 1,849,366.12 - Step 4: Simplify right side
3,138,701.03x = 8,009,404,286,900.90 - Step 5: Solve for x
x = 8,009,404,286,900.90/3,138,701.03 - Step 6: Final answer
x = 2,551,821.35
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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.