Finding the Fourth Proportional to 121,358,995,278.76, 167,474,179,880.24 and 67,165,649,136.28
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Solution
The fourth proportional to 121,358,995,278.76, 167,474,179,880.24 and 67,165,649,136.28 is: 92,687,913,074.63
Step by Step Solution
- Step 1: Write the proportion equation
121,358,995,278.76 : 167,474,179,880.24 = 67,165,649,136.28 : x - Step 2: Convert to fraction form
121,358,995,278.76/167,474,179,880.24 = 67,165,649,136.28/x - Step 3: Cross multiply
121,358,995,278.76x = 167,474,179,880.24 × 67,165,649,136.28 - Step 4: Simplify right side
121,358,995,278.76x = 11,248,512,005,222,443,253,760 - Step 5: Solve for x
x = 11,248,512,005,222,443,253,760/121,358,995,278.76 - Step 6: Final answer
x = 92,687,913,074.63
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1.5x scale
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.