Finding the Fourth Proportional to 405,059,949.27, 559,072,655.12 and 246,256,328.49
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Solution
The fourth proportional to 405,059,949.27, 559,072,655.12 and 246,256,328.49 is: 339,888,403.33
Step by Step Solution
- Step 1: Write the proportion equation
405,059,949.27 : 559,072,655.12 = 246,256,328.49 : x - Step 2: Convert to fraction form
405,059,949.27/559,072,655.12 = 246,256,328.49/x - Step 3: Cross multiply
405,059,949.27x = 559,072,655.12 × 246,256,328.49 - Step 4: Simplify right side
405,059,949.27x = 137,675,179,410,795,904 - Step 5: Solve for x
x = 137,675,179,410,795,904/405,059,949.27 - Step 6: Final answer
x = 339,888,403.33
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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.