Finding the Fourth Proportional to 443,274,991.20, 664,852,125.60 and 115,776,115.20
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Solution
The fourth proportional to 443,274,991.20, 664,852,125.60 and 115,776,115.20 is: 173,648,407.45
Step by Step Solution
- Step 1: Write the proportion equation
443,274,991.20 : 664,852,125.60 = 115,776,115.20 : x - Step 2: Convert to fraction form
443,274,991.20/664,852,125.60 = 115,776,115.20/x - Step 3: Cross multiply
443,274,991.20x = 664,852,125.60 × 115,776,115.20 - Step 4: Simplify right side
443,274,991.20x = 76,973,996,284,430,480 - Step 5: Solve for x
x = 76,973,996,284,430,480/443,274,991.20 - Step 6: Final answer
x = 173,648,407.45
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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.