Finding the Fourth Proportional to 5,390,761.70, 7,439,194.75 and 2,943,365.18
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Solution
The fourth proportional to 5,390,761.70, 7,439,194.75 and 2,943,365.18 is: 4,061,813.15
Step by Step Solution
- Step 1: Write the proportion equation
5,390,761.70 : 7,439,194.75 = 2,943,365.18 : x - Step 2: Convert to fraction form
5,390,761.70/7,439,194.75 = 2,943,365.18/x - Step 3: Cross multiply
5,390,761.70x = 7,439,194.75 × 2,943,365.18 - Step 4: Simplify right side
5,390,761.70x = 21,896,266,782,598 - Step 5: Solve for x
x = 21,896,266,782,598/5,390,761.70 - Step 6: Final answer
x = 4,061,813.15
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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.