Finding the Fourth Proportional to 13,167,129.84, 18,170,665.76 and 7,366,008.47
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Solution
The fourth proportional to 13,167,129.84, 18,170,665.76 and 7,366,008.47 is: 10,165,106.55
Step by Step Solution
- Step 1: Write the proportion equation
13,167,129.84 : 18,170,665.76 = 7,366,008.47 : x - Step 2: Convert to fraction form
13,167,129.84/18,170,665.76 = 7,366,008.47/x - Step 3: Cross multiply
13,167,129.84x = 18,170,665.76 × 7,366,008.47 - Step 4: Simplify right side
13,167,129.84x = 133,845,277,766,015.61 - Step 5: Solve for x
x = 133,845,277,766,015.61/13,167,129.84 - Step 6: Final answer
x = 10,165,106.55
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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.