Finding the Fourth Proportional to 2,948,618,128.79, 4,423,548,367.07 and 956,504,638.62
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Solution
The fourth proportional to 2,948,618,128.79, 4,423,548,367.07 and 956,504,638.62 is: 1,434,958,461.03
Step by Step Solution
- Step 1: Write the proportion equation
2,948,618,128.79 : 4,423,548,367.07 = 956,504,638.62 : x - Step 2: Convert to fraction form
2,948,618,128.79/4,423,548,367.07 = 956,504,638.62/x - Step 3: Cross multiply
2,948,618,128.79x = 4,423,548,367.07 × 956,504,638.62 - Step 4: Simplify right side
2,948,618,128.79x = 4,231,144,532,257,598,464 - Step 5: Solve for x
x = 4,231,144,532,257,598,464/2,948,618,128.79 - Step 6: Final answer
x = 1,434,958,461.03
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1.5x scale
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.