Finding the Fourth Proportional to 19,211,692.40, 26,512,344.80 and 10,509,678.19
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Solution
The fourth proportional to 19,211,692.40, 26,512,344.80 and 10,509,678.19 is: 14,503,470.39
Step by Step Solution
- Step 1: Write the proportion equation
19,211,692.40 : 26,512,344.80 = 10,509,678.19 : x - Step 2: Convert to fraction form
19,211,692.40/26,512,344.80 = 10,509,678.19/x - Step 3: Cross multiply
19,211,692.40x = 26,512,344.80 × 10,509,678.19 - Step 4: Simplify right side
19,211,692.40x = 278,636,211,910,319.91 - Step 5: Solve for x
x = 278,636,211,910,319.91/19,211,692.40 - Step 6: Final answer
x = 14,503,470.39
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1.5x scale
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.