Finding the Fourth Proportional to 275,190,460.06, 379,758,029.42 and 149,738,423.86
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Solution
The fourth proportional to 275,190,460.06, 379,758,029.42 and 149,738,423.86 is: 206,636,410.15
Step by Step Solution
- Step 1: Write the proportion equation
275,190,460.06 : 379,758,029.42 = 149,738,423.86 : x - Step 2: Convert to fraction form
275,190,460.06/379,758,029.42 = 149,738,423.86/x - Step 3: Cross multiply
275,190,460.06x = 379,758,029.42 × 149,738,423.86 - Step 4: Simplify right side
275,190,460.06x = 56,864,368,773,530,320 - Step 5: Solve for x
x = 56,864,368,773,530,320/275,190,460.06 - Step 6: Final answer
x = 206,636,410.15
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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.