Finding the Fourth Proportional to 318,721,409.08, 439,836,455.46 and 184,785,354.34
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Solution
The fourth proportional to 318,721,409.08, 439,836,455.46 and 184,785,354.34 is: 255,004,317.12
Step by Step Solution
- Step 1: Write the proportion equation
318,721,409.08 : 439,836,455.46 = 184,785,354.34 : x - Step 2: Convert to fraction form
318,721,409.08/439,836,455.46 = 184,785,354.34/x - Step 3: Cross multiply
318,721,409.08x = 439,836,455.46 × 184,785,354.34 - Step 4: Simplify right side
318,721,409.08x = 81,275,335,273,825,728 - Step 5: Solve for x
x = 81,275,335,273,825,728/318,721,409.08 - Step 6: Final answer
x = 255,004,317.12
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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.