Finding the Fourth Proportional to 12,107,453.92, 16,698,838.68 and 7,756,947.84
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Solution
The fourth proportional to 12,107,453.92, 16,698,838.68 and 7,756,947.84 is: 10,698,535.09
Step by Step Solution
- Step 1: Write the proportion equation
12,107,453.92 : 16,698,838.68 = 7,756,947.84 : x - Step 2: Convert to fraction form
12,107,453.92/16,698,838.68 = 7,756,947.84/x - Step 3: Cross multiply
12,107,453.92x = 16,698,838.68 × 7,756,947.84 - Step 4: Simplify right side
12,107,453.92x = 129,532,020,629,334.45 - Step 5: Solve for x
x = 129,532,020,629,334.45/12,107,453.92 - Step 6: Final answer
x = 10,698,535.09
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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.