Finding the Fourth Proportional to 5,096,928.91, 7,032,178.55 and 2,891,428.70
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Solution
The fourth proportional to 5,096,928.91, 7,032,178.55 and 2,891,428.70 is: 3,989,273.39
Step by Step Solution
- Step 1: Write the proportion equation
5,096,928.91 : 7,032,178.55 = 2,891,428.70 : x - Step 2: Convert to fraction form
5,096,928.91/7,032,178.55 = 2,891,428.70/x - Step 3: Cross multiply
5,096,928.91x = 7,032,178.55 × 2,891,428.70 - Step 4: Simplify right side
5,096,928.91x = 20,333,042,868,537.24 - Step 5: Solve for x
x = 20,333,042,868,537.24/5,096,928.91 - Step 6: Final answer
x = 3,989,273.39
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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.