Finding the Fourth Proportional to 768,394,852.86, 1,060,385,239.06 and 415,970,832.18
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Solution
The fourth proportional to 768,394,852.86, 1,060,385,239.06 and 415,970,832.18 is: 574,039,933.61
Step by Step Solution
- Step 1: Write the proportion equation
768,394,852.86 : 1,060,385,239.06 = 415,970,832.18 : x - Step 2: Convert to fraction form
768,394,852.86/1,060,385,239.06 = 415,970,832.18/x - Step 3: Cross multiply
768,394,852.86x = 1,060,385,239.06 × 415,970,832.18 - Step 4: Simplify right side
768,394,852.86x = 441,089,330,323,176,448 - Step 5: Solve for x
x = 441,089,330,323,176,448/768,394,852.86 - Step 6: Final answer
x = 574,039,933.61
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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.