Finding the Fourth Proportional to 290,304,313.70, 435,456,470.55 and 218,640,697.70
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Solution
The fourth proportional to 290,304,313.70, 435,456,470.55 and 218,640,697.70 is: 327,961,046.55
Step by Step Solution
- Step 1: Write the proportion equation
290,304,313.70 : 435,456,470.55 = 218,640,697.70 : x - Step 2: Convert to fraction form
290,304,313.70/435,456,470.55 = 218,640,697.70/x - Step 3: Cross multiply
290,304,313.70x = 435,456,470.55 × 218,640,697.70 - Step 4: Simplify right side
290,304,313.70x = 95,208,506,539,031,504 - Step 5: Solve for x
x = 95,208,506,539,031,504/290,304,313.70 - Step 6: Final answer
x = 327,961,046.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.