Finding the Fourth Proportional to 405,059,940.37, 559,072,642.85 and 246,256,319.62
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Solution
The fourth proportional to 405,059,940.37, 559,072,642.85 and 246,256,319.62 is: 339,888,391.09
Step by Step Solution
- Step 1: Write the proportion equation
405,059,940.37 : 559,072,642.85 = 246,256,319.62 : x - Step 2: Convert to fraction form
405,059,940.37/559,072,642.85 = 246,256,319.62/x - Step 3: Cross multiply
405,059,940.37x = 559,072,642.85 × 246,256,319.62 - Step 4: Simplify right side
405,059,940.37x = 137,675,171,430,157,488 - Step 5: Solve for x
x = 137,675,171,430,157,488/405,059,940.37 - Step 6: Final answer
x = 339,888,391.09
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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.