Finding the Fourth Proportional to 39,090,891.08, 53,951,904.82 and 21,692,824.84
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Solution
The fourth proportional to 39,090,891.08, 53,951,904.82 and 21,692,824.84 is: 29,939,691.54
Step by Step Solution
- Step 1: Write the proportion equation
39,090,891.08 : 53,951,904.82 = 21,692,824.84 : x - Step 2: Convert to fraction form
39,090,891.08/53,951,904.82 = 21,692,824.84/x - Step 3: Cross multiply
39,090,891.08x = 53,951,904.82 × 21,692,824.84 - Step 4: Simplify right side
39,090,891.08x = 1,170,369,221,044,611.75 - Step 5: Solve for x
x = 1,170,369,221,044,611.75/39,090,891.08 - Step 6: Final answer
x = 29,939,691.54
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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.