Finding the Fourth Proportional to 12,631,788, 17,430,807.96 and 7,474,245.84
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Solution
The fourth proportional to 12,631,788, 17,430,807.96 and 7,474,245.84 is: 10,313,832.36
Step by Step Solution
- Step 1: Write the proportion equation
12,631,788 : 17,430,807.96 = 7,474,245.84 : x - Step 2: Convert to fraction form
12,631,788/17,430,807.96 = 7,474,245.84/x - Step 3: Cross multiply
12,631,788x = 17,430,807.96 × 7,474,245.84 - Step 4: Simplify right side
12,631,788x = 130,282,143,882,868.89 - Step 5: Solve for x
x = 130,282,143,882,868.89/12,631,788 - Step 6: Final answer
x = 10,313,832.36
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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.