Finding the Fourth Proportional to 7,139,975.99, 9,853,237.67 and 3,876,817.46
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Solution
The fourth proportional to 7,139,975.99, 9,853,237.67 and 3,876,817.46 is: 5,350,046.53
Step by Step Solution
- Step 1: Write the proportion equation
7,139,975.99 : 9,853,237.67 = 3,876,817.46 : x - Step 2: Convert to fraction form
7,139,975.99/9,853,237.67 = 3,876,817.46/x - Step 3: Cross multiply
7,139,975.99x = 9,853,237.67 × 3,876,817.46 - Step 4: Simplify right side
7,139,975.99x = 38,199,203,767,935.44 - Step 5: Solve for x
x = 38,199,203,767,935.44/7,139,975.99 - Step 6: Final answer
x = 5,350,046.53
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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.