Finding the Fourth Proportional to 481,142,129.07, 663,976,414.38 and 261,125,555.07
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Solution
The fourth proportional to 481,142,129.07, 663,976,414.38 and 261,125,555.07 is: 360,353,415.93
Step by Step Solution
- Step 1: Write the proportion equation
481,142,129.07 : 663,976,414.38 = 261,125,555.07 : x - Step 2: Convert to fraction form
481,142,129.07/663,976,414.38 = 261,125,555.07/x - Step 3: Cross multiply
481,142,129.07x = 663,976,414.38 × 261,125,555.07 - Step 4: Simplify right side
481,142,129.07x = 173,381,209,758,365,824 - Step 5: Solve for x
x = 173,381,209,758,365,824/481,142,129.07 - Step 6: Final answer
x = 360,353,415.93
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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.