Finding the Fourth Proportional to 9,415,193.56, 12,994,336.81 and 5,286,932.17
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Solution
The fourth proportional to 9,415,193.56, 12,994,336.81 and 5,286,932.17 is: 7,296,735.52
Step by Step Solution
- Step 1: Write the proportion equation
9,415,193.56 : 12,994,336.81 = 5,286,932.17 : x - Step 2: Convert to fraction form
9,415,193.56/12,994,336.81 = 5,286,932.17/x - Step 3: Cross multiply
9,415,193.56x = 12,994,336.81 × 5,286,932.17 - Step 4: Simplify right side
9,415,193.56x = 68,700,177,282,727 - Step 5: Solve for x
x = 68,700,177,282,727/9,415,193.56 - Step 6: Final answer
x = 7,296,735.52
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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.