Finding the Fourth Proportional to 3,749,462.08, 5,174,678.47 and 2,117,974.53
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Solution
The fourth proportional to 3,749,462.08, 5,174,678.47 and 2,117,974.53 is: 2,923,042.55
Step by Step Solution
- Step 1: Write the proportion equation
3,749,462.08 : 5,174,678.47 = 2,117,974.53 : x - Step 2: Convert to fraction form
3,749,462.08/5,174,678.47 = 2,117,974.53/x - Step 3: Cross multiply
3,749,462.08x = 5,174,678.47 × 2,117,974.53 - Step 4: Simplify right side
3,749,462.08x = 10,959,837,189,809.49 - Step 5: Solve for x
x = 10,959,837,189,809.49/3,749,462.08 - Step 6: Final answer
x = 2,923,042.55
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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.