Finding the Fourth Proportional to 13,621,167.36, 18,797,341.44 and 7,509,815.04
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Solution
The fourth proportional to 13,621,167.36, 18,797,341.44 and 7,509,815.04 is: 10,363,616.70
Step by Step Solution
- Step 1: Write the proportion equation
13,621,167.36 : 18,797,341.44 = 7,509,815.04 : x - Step 2: Convert to fraction form
13,621,167.36/18,797,341.44 = 7,509,815.04/x - Step 3: Cross multiply
13,621,167.36x = 18,797,341.44 × 7,509,815.04 - Step 4: Simplify right side
13,621,167.36x = 141,164,557,458,127.28 - Step 5: Solve for x
x = 141,164,557,458,127.28/13,621,167.36 - Step 6: Final answer
x = 10,363,616.70
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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.