Finding the Fourth Proportional to 20,045,368.19, 27,662,625.81 and 10,878,010.94
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Solution
The fourth proportional to 20,045,368.19, 27,662,625.81 and 10,878,010.94 is: 15,011,664.70
Step by Step Solution
- Step 1: Write the proportion equation
20,045,368.19 : 27,662,625.81 = 10,878,010.94 : x - Step 2: Convert to fraction form
20,045,368.19/27,662,625.81 = 10,878,010.94/x - Step 3: Cross multiply
20,045,368.19x = 27,662,625.81 × 10,878,010.94 - Step 4: Simplify right side
20,045,368.19x = 300,914,346,051,993.25 - Step 5: Solve for x
x = 300,914,346,051,993.25/20,045,368.19 - Step 6: Final answer
x = 15,011,664.70
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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.