Finding the Fourth Proportional to 275,212,451.12, 379,793,238.36 and 151,453,128.32
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Solution
The fourth proportional to 275,212,451.12, 379,793,238.36 and 151,453,128.32 is: 209,005,347.80
Step by Step Solution
- Step 1: Write the proportion equation
275,212,451.12 : 379,793,238.36 = 151,453,128.32 : x - Step 2: Convert to fraction form
275,212,451.12/379,793,238.36 = 151,453,128.32/x - Step 3: Cross multiply
275,212,451.12x = 379,793,238.36 × 151,453,128.32 - Step 4: Simplify right side
275,212,451.12x = 57,520,874,064,405,424 - Step 5: Solve for x
x = 57,520,874,064,405,424/275,212,451.12 - Step 6: Final answer
x = 209,005,347.80
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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.