Finding the Fourth Proportional to 664,303,617.20, 996,455,425.80 and 492,116,733.20
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Solution
The fourth proportional to 664,303,617.20, 996,455,425.80 and 492,116,733.20 is: 738,175,099.80
Step by Step Solution
- Step 1: Write the proportion equation
664,303,617.20 : 996,455,425.80 = 492,116,733.20 : x - Step 2: Convert to fraction form
664,303,617.20/996,455,425.80 = 492,116,733.20/x - Step 3: Cross multiply
664,303,617.20x = 996,455,425.80 × 492,116,733.20 - Step 4: Simplify right side
664,303,617.20x = 490,372,388,924,110,976 - Step 5: Solve for x
x = 490,372,388,924,110,976/664,303,617.20 - Step 6: Final answer
x = 738,175,099.80
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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.