Finding the Fourth Proportional to 11,379,673.81, 15,705,166.87 and 6,972,324.38
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Solution
The fourth proportional to 11,379,673.81, 15,705,166.87 and 6,972,324.38 is: 9,622,553.30
Step by Step Solution
- Step 1: Write the proportion equation
11,379,673.81 : 15,705,166.87 = 6,972,324.38 : x - Step 2: Convert to fraction form
11,379,673.81/15,705,166.87 = 6,972,324.38/x - Step 3: Cross multiply
11,379,673.81x = 15,705,166.87 × 6,972,324.38 - Step 4: Simplify right side
11,379,673.81x = 109,501,517,746,281.83 - Step 5: Solve for x
x = 109,501,517,746,281.83/11,379,673.81 - Step 6: Final answer
x = 9,622,553.30
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1.5x scale
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.