Finding the Fourth Proportional to 13,147,614.84, 18,143,799.64 and 7,346,641.08
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Solution
The fourth proportional to 13,147,614.84, 18,143,799.64 and 7,346,641.08 is: 10,138,415.63
Step by Step Solution
- Step 1: Write the proportion equation
13,147,614.84 : 18,143,799.64 = 7,346,641.08 : x - Step 2: Convert to fraction form
13,147,614.84/18,143,799.64 = 7,346,641.08/x - Step 3: Cross multiply
13,147,614.84x = 18,143,799.64 × 7,346,641.08 - Step 4: Simplify right side
13,147,614.84x = 133,295,983,782,513.22 - Step 5: Solve for x
x = 133,295,983,782,513.22/13,147,614.84 - Step 6: Final answer
x = 10,138,415.63
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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.