Finding the Fourth Proportional to 13,476,939.93, 18,601,483.41 and 7,679,148.26
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Solution
The fourth proportional to 13,476,939.93, 18,601,483.41 and 7,679,148.26 is: 10,599,108.52
Step by Step Solution
- Step 1: Write the proportion equation
13,476,939.93 : 18,601,483.41 = 7,679,148.26 : x - Step 2: Convert to fraction form
13,476,939.93/18,601,483.41 = 7,679,148.26/x - Step 3: Cross multiply
13,476,939.93x = 18,601,483.41 × 7,679,148.26 - Step 4: Simplify right side
13,476,939.93x = 142,843,548,868,312.94 - Step 5: Solve for x
x = 142,843,548,868,312.94/13,476,939.93 - Step 6: Final answer
x = 10,599,108.52
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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.