Finding the Fourth Proportional to 7,686,895.68, 10,601,043.48 and 6,378,073.92
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Solution
The fourth proportional to 7,686,895.68, 10,601,043.48 and 6,378,073.92 is: 8,796,039.62
Step by Step Solution
- Step 1: Write the proportion equation
7,686,895.68 : 10,601,043.48 = 6,378,073.92 : x - Step 2: Convert to fraction form
7,686,895.68/10,601,043.48 = 6,378,073.92/x - Step 3: Cross multiply
7,686,895.68x = 10,601,043.48 × 6,378,073.92 - Step 4: Simplify right side
7,686,895.68x = 67,614,238,944,574.05 - Step 5: Solve for x
x = 67,614,238,944,574.05/7,686,895.68 - Step 6: Final answer
x = 8,796,039.62
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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.