Finding the Fourth Proportional to 2,215,244,247.42, 3,057,978,349.78 and 1,380,281,349.08
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Solution
The fourth proportional to 2,215,244,247.42, 3,057,978,349.78 and 1,380,281,349.08 is: 1,905,374,762.63
Step by Step Solution
- Step 1: Write the proportion equation
2,215,244,247.42 : 3,057,978,349.78 = 1,380,281,349.08 : x - Step 2: Convert to fraction form
2,215,244,247.42/3,057,978,349.78 = 1,380,281,349.08/x - Step 3: Cross multiply
2,215,244,247.42x = 3,057,978,349.78 × 1,380,281,349.08 - Step 4: Simplify right side
2,215,244,247.42x = 4,220,870,482,091,770,368 - Step 5: Solve for x
x = 4,220,870,482,091,770,368/2,215,244,247.42 - Step 6: Final answer
x = 1,905,374,762.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.