Finding the Fourth Proportional to 698,279,446.62, 1,046,233,847.34 and 421,348,740
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Solution
The fourth proportional to 698,279,446.62, 1,046,233,847.34 and 421,348,740 is: 631,307,874.60
Step by Step Solution
- Step 1: Write the proportion equation
698,279,446.62 : 1,046,233,847.34 = 421,348,740 : x - Step 2: Convert to fraction form
698,279,446.62/1,046,233,847.34 = 421,348,740/x - Step 3: Cross multiply
698,279,446.62x = 1,046,233,847.34 × 421,348,740 - Step 4: Simplify right side
698,279,446.62x = 440,829,313,322,061,376 - Step 5: Solve for x
x = 440,829,313,322,061,376/698,279,446.62 - Step 6: Final answer
x = 631,307,874.60
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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.