Finding the Fourth Proportional to 20,950,903.68, 31,427,683.60 and 6,574,538.72
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Solution
The fourth proportional to 20,950,903.68, 31,427,683.60 and 6,574,538.72 is: 9,862,224.84
Step by Step Solution
- Step 1: Write the proportion equation
20,950,903.68 : 31,427,683.60 = 6,574,538.72 : x - Step 2: Convert to fraction form
20,950,903.68/31,427,683.60 = 6,574,538.72/x - Step 3: Cross multiply
20,950,903.68x = 31,427,683.60 × 6,574,538.72 - Step 4: Simplify right side
20,950,903.68x = 206,622,522,708,109 - Step 5: Solve for x
x = 206,622,522,708,109/20,950,903.68 - Step 6: Final answer
x = 9,862,224.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.