Finding the Fourth Proportional to 1,120,278,517.32, 1,680,394,701.87 and 373,348,523.08
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Solution
The fourth proportional to 1,120,278,517.32, 1,680,394,701.87 and 373,348,523.08 is: 560,015,094.85
Step by Step Solution
- Step 1: Write the proportion equation
1,120,278,517.32 : 1,680,394,701.87 = 373,348,523.08 : x - Step 2: Convert to fraction form
1,120,278,517.32/1,680,394,701.87 = 373,348,523.08/x - Step 3: Cross multiply
1,120,278,517.32x = 1,680,394,701.87 × 373,348,523.08 - Step 4: Simplify right side
1,120,278,517.32x = 627,372,880,134,621,312 - Step 5: Solve for x
x = 627,372,880,134,621,312/1,120,278,517.32 - Step 6: Final answer
x = 560,015,094.85
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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.