Finding the Fourth Proportional to 768,394,853.86, 1,060,385,240.44 and 415,970,833.18
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Solution
The fourth proportional to 768,394,853.86, 1,060,385,240.44 and 415,970,833.18 is: 574,039,934.99
Step by Step Solution
- Step 1: Write the proportion equation
768,394,853.86 : 1,060,385,240.44 = 415,970,833.18 : x - Step 2: Convert to fraction form
768,394,853.86/1,060,385,240.44 = 415,970,833.18/x - Step 3: Cross multiply
768,394,853.86x = 1,060,385,240.44 × 415,970,833.18 - Step 4: Simplify right side
768,394,853.86x = 441,089,331,957,601,472 - Step 5: Solve for x
x = 441,089,331,957,601,472/768,394,853.86 - Step 6: Final answer
x = 574,039,934.99
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1.5x scale
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.