Finding the Fourth Proportional to 39,603,646.09, 54,658,635.06 and 21,966,447.97
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Solution
The fourth proportional to 39,603,646.09, 54,658,635.06 and 21,966,447.97 is: 30,316,806.20
Step by Step Solution
- Step 1: Write the proportion equation
39,603,646.09 : 54,658,635.06 = 21,966,447.97 : x - Step 2: Convert to fraction form
39,603,646.09/54,658,635.06 = 21,966,447.97/x - Step 3: Cross multiply
39,603,646.09x = 54,658,635.06 × 21,966,447.97 - Step 4: Simplify right side
39,603,646.09x = 1,200,656,063,156,707.75 - Step 5: Solve for x
x = 1,200,656,063,156,707.75/39,603,646.09 - Step 6: Final answer
x = 30,316,806.20
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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.