Finding the Fourth Proportional to 20,599,903.26, 28,414,935.68 and 12,221,341.14
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Solution
The fourth proportional to 20,599,903.26, 28,414,935.68 and 12,221,341.14 is: 16,857,779.28
Step by Step Solution
- Step 1: Write the proportion equation
20,599,903.26 : 28,414,935.68 = 12,221,341.14 : x - Step 2: Convert to fraction form
20,599,903.26/28,414,935.68 = 12,221,341.14/x - Step 3: Cross multiply
20,599,903.26x = 28,414,935.68 × 12,221,341.14 - Step 4: Simplify right side
20,599,903.26x = 347,268,622,416,437.88 - Step 5: Solve for x
x = 347,268,622,416,437.88/20,599,903.26 - Step 6: Final answer
x = 16,857,779.28
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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.