Finding the Fourth Proportional to 22,399,103.40, 30,910,813.84 and 12,475,906.68
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Solution
The fourth proportional to 22,399,103.40, 30,910,813.84 and 12,475,906.68 is: 17,216,779.71
Step by Step Solution
- Step 1: Write the proportion equation
22,399,103.40 : 30,910,813.84 = 12,475,906.68 : x - Step 2: Convert to fraction form
22,399,103.40/30,910,813.84 = 12,475,906.68/x - Step 3: Cross multiply
22,399,103.40x = 30,910,813.84 × 12,475,906.68 - Step 4: Simplify right side
22,399,103.40x = 385,640,428,870,692.44 - Step 5: Solve for x
x = 385,640,428,870,692.44/22,399,103.40 - Step 6: Final answer
x = 17,216,779.71
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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.