Finding the Fourth Proportional to 11,287,459.80, 15,576,899.72 and 6,393,697.99
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Solution
The fourth proportional to 11,287,459.80, 15,576,899.72 and 6,393,697.99 is: 8,823,419.45
Step by Step Solution
- Step 1: Write the proportion equation
11,287,459.80 : 15,576,899.72 = 6,393,697.99 : x - Step 2: Convert to fraction form
11,287,459.80/15,576,899.72 = 6,393,697.99/x - Step 3: Cross multiply
11,287,459.80x = 15,576,899.72 × 6,393,697.99 - Step 4: Simplify right side
11,287,459.80x = 99,593,992,359,284.81 - Step 5: Solve for x
x = 99,593,992,359,284.81/11,287,459.80 - Step 6: Final answer
x = 8,823,419.45
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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.