Finding the Fourth Proportional to 39,603,645.09, 54,658,633.68 and 21,966,446.97
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Solution
The fourth proportional to 39,603,645.09, 54,658,633.68 and 21,966,446.97 is: 30,316,804.82
Step by Step Solution
- Step 1: Write the proportion equation
39,603,645.09 : 54,658,633.68 = 21,966,446.97 : x - Step 2: Convert to fraction form
39,603,645.09/54,658,633.68 = 21,966,446.97/x - Step 3: Cross multiply
39,603,645.09x = 54,658,633.68 × 21,966,446.97 - Step 4: Simplify right side
39,603,645.09x = 1,200,655,978,184,376 - Step 5: Solve for x
x = 1,200,655,978,184,376/39,603,645.09 - Step 6: Final answer
x = 30,316,804.82
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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.