Finding the Fourth Proportional to 20,836,427.68, 31,255,822.50 and 6,461,539.12
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Solution
The fourth proportional to 20,836,427.68, 31,255,822.50 and 6,461,539.12 is: 9,692,674.90
Step by Step Solution
- Step 1: Write the proportion equation
20,836,427.68 : 31,255,822.50 = 6,461,539.12 : x - Step 2: Convert to fraction form
20,836,427.68/31,255,822.50 = 6,461,539.12/x - Step 3: Cross multiply
20,836,427.68x = 31,255,822.50 × 6,461,539.12 - Step 4: Simplify right side
20,836,427.68x = 201,960,719,622,939.41 - Step 5: Solve for x
x = 201,960,719,622,939.41/20,836,427.68 - Step 6: Final answer
x = 9,692,674.90
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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.