Finding the Fourth Proportional to 19,587,448.86, 27,022,294.69 and 12,232,513.19
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Solution
The fourth proportional to 19,587,448.86, 27,022,294.69 and 12,232,513.19 is: 16,875,631.86
Step by Step Solution
- Step 1: Write the proportion equation
19,587,448.86 : 27,022,294.69 = 12,232,513.19 : x - Step 2: Convert to fraction form
19,587,448.86/27,022,294.69 = 12,232,513.19/x - Step 3: Cross multiply
19,587,448.86x = 27,022,294.69 × 12,232,513.19 - Step 4: Simplify right side
19,587,448.86x = 330,550,576,053,799.25 - Step 5: Solve for x
x = 330,550,576,053,799.25/19,587,448.86 - Step 6: Final answer
x = 16,875,631.86
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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.