Finding the Fourth Proportional to 5,390,975.53, 7,439,562.35 and 2,943,608.05
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Solution
The fourth proportional to 5,390,975.53, 7,439,562.35 and 2,943,608.05 is: 4,062,187.91
Step by Step Solution
- Step 1: Write the proportion equation
5,390,975.53 : 7,439,562.35 = 2,943,608.05 : x - Step 2: Convert to fraction form
5,390,975.53/7,439,562.35 = 2,943,608.05/x - Step 3: Cross multiply
5,390,975.53x = 7,439,562.35 × 2,943,608.05 - Step 4: Simplify right side
5,390,975.53x = 21,899,155,621,936.91 - Step 5: Solve for x
x = 21,899,155,621,936.91/5,390,975.53 - Step 6: Final answer
x = 4,062,187.91
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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.