Finding the Fourth Proportional to 653,246,163.80, 979,869,245.70 and 603,361,568.60
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Solution
The fourth proportional to 653,246,163.80, 979,869,245.70 and 603,361,568.60 is: 905,042,352.90
Step by Step Solution
- Step 1: Write the proportion equation
653,246,163.80 : 979,869,245.70 = 603,361,568.60 : x - Step 2: Convert to fraction form
653,246,163.80/979,869,245.70 = 603,361,568.60/x - Step 3: Cross multiply
653,246,163.80x = 979,869,245.70 × 603,361,568.60 - Step 4: Simplify right side
653,246,163.80x = 591,215,445,108,450,816 - Step 5: Solve for x
x = 591,215,445,108,450,816/653,246,163.80 - Step 6: Final answer
x = 905,042,352.90
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Double scale
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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.