Finding the Fourth Proportional to 20,970,581.26, 28,940,060.88 and 11,552,055.36
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Solution
The fourth proportional to 20,970,581.26, 28,940,060.88 and 11,552,055.36 is: 15,942,199.28
Step by Step Solution
- Step 1: Write the proportion equation
20,970,581.26 : 28,940,060.88 = 11,552,055.36 : x - Step 2: Convert to fraction form
20,970,581.26/28,940,060.88 = 11,552,055.36/x - Step 3: Cross multiply
20,970,581.26x = 28,940,060.88 × 11,552,055.36 - Step 4: Simplify right side
20,970,581.26x = 334,317,185,407,530.31 - Step 5: Solve for x
x = 334,317,185,407,530.31/20,970,581.26 - Step 6: Final answer
x = 15,942,199.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.