Finding the Fourth Proportional to 2,718,519.12, 3,747,803.62 and 2,169,100.68
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Solution
The fourth proportional to 2,718,519.12, 3,747,803.62 and 2,169,100.68 is: 2,990,364.61
Step by Step Solution
- Step 1: Write the proportion equation
2,718,519.12 : 3,747,803.62 = 2,169,100.68 : x - Step 2: Convert to fraction form
2,718,519.12/3,747,803.62 = 2,169,100.68/x - Step 3: Cross multiply
2,718,519.12x = 3,747,803.62 × 2,169,100.68 - Step 4: Simplify right side
2,718,519.12x = 8,129,363,380,648.46 - Step 5: Solve for x
x = 8,129,363,380,648.46/2,718,519.12 - Step 6: Final answer
x = 2,990,364.61
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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.