Finding the Fourth Proportional to 15,546,048.06, 21,453,543.87 and 8,670,382.62
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Solution
The fourth proportional to 15,546,048.06, 21,453,543.87 and 8,670,382.62 is: 11,965,126.65
Step by Step Solution
- Step 1: Write the proportion equation
15,546,048.06 : 21,453,543.87 = 8,670,382.62 : x - Step 2: Convert to fraction form
15,546,048.06/21,453,543.87 = 8,670,382.62/x - Step 3: Cross multiply
15,546,048.06x = 21,453,543.87 × 8,670,382.62 - Step 4: Simplify right side
15,546,048.06x = 186,010,433,907,855.53 - Step 5: Solve for x
x = 186,010,433,907,855.53/15,546,048.06 - Step 6: Final answer
x = 11,965,126.65
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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.