Finding the Fourth Proportional to 397,889,765.38, 548,715,430.74 and 314,457,213.07
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Solution
The fourth proportional to 397,889,765.38, 548,715,430.74 and 314,457,213.07 is: 433,656,605.75
Step by Step Solution
- Step 1: Write the proportion equation
397,889,765.38 : 548,715,430.74 = 314,457,213.07 : x - Step 2: Convert to fraction form
397,889,765.38/548,715,430.74 = 314,457,213.07/x - Step 3: Cross multiply
397,889,765.38x = 548,715,430.74 × 314,457,213.07 - Step 4: Simplify right side
397,889,765.38x = 172,547,525,119,004,992 - Step 5: Solve for x
x = 172,547,525,119,004,992/397,889,765.38 - Step 6: Final answer
x = 433,656,605.75
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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.