Finding the Fourth Proportional to 885,748,233.20, 1,328,622,349.80 and 394,460,553.20
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Solution
The fourth proportional to 885,748,233.20, 1,328,622,349.80 and 394,460,553.20 is: 591,690,829.80
Step by Step Solution
- Step 1: Write the proportion equation
885,748,233.20 : 1,328,622,349.80 = 394,460,553.20 : x - Step 2: Convert to fraction form
885,748,233.20/1,328,622,349.80 = 394,460,553.20/x - Step 3: Cross multiply
885,748,233.20x = 1,328,622,349.80 × 394,460,553.20 - Step 4: Simplify right side
885,748,233.20x = 524,089,107,095,991,872 - Step 5: Solve for x
x = 524,089,107,095,991,872/885,748,233.20 - Step 6: Final answer
x = 591,690,829.80
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Similar ratio
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1.5x scale
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.