Finding the Fourth Proportional to 39,413,331.94, 54,390,854.57 and 21,771,869.03
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Solution
The fourth proportional to 39,413,331.94, 54,390,854.57 and 21,771,869.03 is: 30,045,431.42
Step by Step Solution
- Step 1: Write the proportion equation
39,413,331.94 : 54,390,854.57 = 21,771,869.03 : x - Step 2: Convert to fraction form
39,413,331.94/54,390,854.57 = 21,771,869.03/x - Step 3: Cross multiply
39,413,331.94x = 54,390,854.57 × 21,771,869.03 - Step 4: Simplify right side
39,413,331.94x = 1,184,190,561,835,348.75 - Step 5: Solve for x
x = 1,184,190,561,835,348.75/39,413,331.94 - Step 6: Final answer
x = 30,045,431.42
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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.