Finding the Fourth Proportional to 19,691,125.16, 27,172,618.98 and 10,988,614.76
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Solution
The fourth proportional to 19,691,125.16, 27,172,618.98 and 10,988,614.76 is: 15,163,655.69
Step by Step Solution
- Step 1: Write the proportion equation
19,691,125.16 : 27,172,618.98 = 10,988,614.76 : x - Step 2: Convert to fraction form
19,691,125.16/27,172,618.98 = 10,988,614.76/x - Step 3: Cross multiply
19,691,125.16x = 27,172,618.98 × 10,988,614.76 - Step 4: Simplify right side
19,691,125.16x = 298,589,441,991,484.12 - Step 5: Solve for x
x = 298,589,441,991,484.12/19,691,125.16 - Step 6: Final answer
x = 15,163,655.69
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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.