Finding the Fourth Proportional to 2,136,074.10, 2,947,800.63 and 1,218,349.70
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Solution
The fourth proportional to 2,136,074.10, 2,947,800.63 and 1,218,349.70 is: 1,681,333.07
Step by Step Solution
- Step 1: Write the proportion equation
2,136,074.10 : 2,947,800.63 = 1,218,349.70 : x - Step 2: Convert to fraction form
2,136,074.10/2,947,800.63 = 1,218,349.70/x - Step 3: Cross multiply
2,136,074.10x = 2,947,800.63 × 1,218,349.70 - Step 4: Simplify right side
2,136,074.10x = 3,591,452,013,220.31 - Step 5: Solve for x
x = 3,591,452,013,220.31/2,136,074.10 - Step 6: Final answer
x = 1,681,333.07
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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.