Finding the Fourth Proportional to 11,216,331.81, 16,817,771.64 and 5,143,455.84
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Solution
The fourth proportional to 11,216,331.81, 16,817,771.64 and 5,143,455.84 is: 7,712,099.39
Step by Step Solution
- Step 1: Write the proportion equation
11,216,331.81 : 16,817,771.64 = 5,143,455.84 : x - Step 2: Convert to fraction form
11,216,331.81/16,817,771.64 = 5,143,455.84/x - Step 3: Cross multiply
11,216,331.81x = 16,817,771.64 × 5,143,455.84 - Step 4: Simplify right side
11,216,331.81x = 86,501,465,757,544.38 - Step 5: Solve for x
x = 86,501,465,757,544.38/11,216,331.81 - Step 6: Final answer
x = 7,712,099.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.