Finding the Fourth Proportional to 19,965,376.15, 27,552,138.93 and 11,263,549.19
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Solution
The fourth proportional to 19,965,376.15, 27,552,138.93 and 11,263,549.19 is: 15,543,652.66
Step by Step Solution
- Step 1: Write the proportion equation
19,965,376.15 : 27,552,138.93 = 11,263,549.19 : x - Step 2: Convert to fraction form
19,965,376.15/27,552,138.93 = 11,263,549.19/x - Step 3: Cross multiply
19,965,376.15x = 27,552,138.93 × 11,263,549.19 - Step 4: Simplify right side
19,965,376.15x = 310,334,871,990,008.31 - Step 5: Solve for x
x = 310,334,871,990,008.31/19,965,376.15 - Step 6: Final answer
x = 15,543,652.66
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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.