Finding the Fourth Proportional to 5,072,472, 7,000,495.47 and 2,897,340.12
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Solution
The fourth proportional to 5,072,472, 7,000,495.47 and 2,897,340.12 is: 3,998,605.88
Step by Step Solution
- Step 1: Write the proportion equation
5,072,472 : 7,000,495.47 = 2,897,340.12 : x - Step 2: Convert to fraction form
5,072,472/7,000,495.47 = 2,897,340.12/x - Step 3: Cross multiply
5,072,472x = 7,000,495.47 × 2,897,340.12 - Step 4: Simplify right side
5,072,472x = 20,282,816,385,109.26 - Step 5: Solve for x
x = 20,282,816,385,109.26/5,072,472 - Step 6: Final answer
x = 3,998,605.88
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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.