Finding the Fourth Proportional to 7,871,748.26, 10,862,573.37 and 4,339,430.90
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Solution
The fourth proportional to 7,871,748.26, 10,862,573.37 and 4,339,430.90 is: 5,988,172.51
Step by Step Solution
- Step 1: Write the proportion equation
7,871,748.26 : 10,862,573.37 = 4,339,430.90 : x - Step 2: Convert to fraction form
7,871,748.26/10,862,573.37 = 4,339,430.90/x - Step 3: Cross multiply
7,871,748.26x = 10,862,573.37 × 4,339,430.90 - Step 4: Simplify right side
7,871,748.26x = 47,137,386,535,295.13 - Step 5: Solve for x
x = 47,137,386,535,295.13/7,871,748.26 - Step 6: Final answer
x = 5,988,172.51
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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.