Finding the Fourth Proportional to 13,879,591.31, 19,119,612.08 and 11,807,971.97
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Solution
The fourth proportional to 13,879,591.31, 19,119,612.08 and 11,807,971.97 is: 16,265,885.53
Step by Step Solution
- Step 1: Write the proportion equation
13,879,591.31 : 19,119,612.08 = 11,807,971.97 : x - Step 2: Convert to fraction form
13,879,591.31/19,119,612.08 = 11,807,971.97/x - Step 3: Cross multiply
13,879,591.31x = 19,119,612.08 × 11,807,971.97 - Step 4: Simplify right side
13,879,591.31x = 225,763,843,451,835.25 - Step 5: Solve for x
x = 225,763,843,451,835.25/13,879,591.31 - Step 6: Final answer
x = 16,265,885.53
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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.