Finding the Fourth Proportional to 996,552,452.70, 1,494,828,679.05 and 415,421,719.20
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Solution
The fourth proportional to 996,552,452.70, 1,494,828,679.05 and 415,421,719.20 is: 623,132,578.80
Step by Step Solution
- Step 1: Write the proportion equation
996,552,452.70 : 1,494,828,679.05 = 415,421,719.20 : x - Step 2: Convert to fraction form
996,552,452.70/1,494,828,679.05 = 415,421,719.20/x - Step 3: Cross multiply
996,552,452.70x = 1,494,828,679.05 × 415,421,719.20 - Step 4: Simplify right side
996,552,452.70x = 620,984,299,760,416,000 - Step 5: Solve for x
x = 620,984,299,760,416,000/996,552,452.70 - Step 6: Final answer
x = 623,132,578.80
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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.