Finding the Fourth Proportional to 15,962,821.49, 22,028,692.81 and 8,620,653.92
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Solution
The fourth proportional to 15,962,821.49, 22,028,692.81 and 8,620,653.92 is: 11,896,501.95
Step by Step Solution
- Step 1: Write the proportion equation
15,962,821.49 : 22,028,692.81 = 8,620,653.92 : x - Step 2: Convert to fraction form
15,962,821.49/22,028,692.81 = 8,620,653.92/x - Step 3: Cross multiply
15,962,821.49x = 22,028,692.81 × 8,620,653.92 - Step 4: Simplify right side
15,962,821.49x = 189,901,736,981,899.03 - Step 5: Solve for x
x = 189,901,736,981,899.03/15,962,821.49 - Step 6: Final answer
x = 11,896,501.95
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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.