Finding the Fourth Proportional to 664,305,848.40, 996,458,772.60 and 354,369,457.20
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Solution
The fourth proportional to 664,305,848.40, 996,458,772.60 and 354,369,457.20 is: 531,554,185.80
Step by Step Solution
- Step 1: Write the proportion equation
664,305,848.40 : 996,458,772.60 = 354,369,457.20 : x - Step 2: Convert to fraction form
664,305,848.40/996,458,772.60 = 354,369,457.20/x - Step 3: Cross multiply
664,305,848.40x = 996,458,772.60 × 354,369,457.20 - Step 4: Simplify right side
664,305,848.40x = 353,114,554,368,440,256 - Step 5: Solve for x
x = 353,114,554,368,440,256/664,305,848.40 - Step 6: Final answer
x = 531,554,185.80
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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.