Finding the Fourth Proportional to 5,390,974.53, 7,439,560.97 and 2,943,607.05
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Solution
The fourth proportional to 5,390,974.53, 7,439,560.97 and 2,943,607.05 is: 4,062,186.53
Step by Step Solution
- Step 1: Write the proportion equation
5,390,974.53 : 7,439,560.97 = 2,943,607.05 : x - Step 2: Convert to fraction form
5,390,974.53/7,439,560.97 = 2,943,607.05/x - Step 3: Cross multiply
5,390,974.53x = 7,439,560.97 × 2,943,607.05 - Step 4: Simplify right side
5,390,974.53x = 21,899,144,105,478.80 - Step 5: Solve for x
x = 21,899,144,105,478.80/5,390,974.53 - Step 6: Final answer
x = 4,062,186.53
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1.5x scale
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.