Finding the Fourth Proportional to 759,522,452.70, 1,139,283,679.05 and 728,911,451.10
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Solution
The fourth proportional to 759,522,452.70, 1,139,283,679.05 and 728,911,451.10 is: 1,093,367,176.65
Step by Step Solution
- Step 1: Write the proportion equation
759,522,452.70 : 1,139,283,679.05 = 728,911,451.10 : x - Step 2: Convert to fraction form
759,522,452.70/1,139,283,679.05 = 728,911,451.10/x - Step 3: Cross multiply
759,522,452.70x = 1,139,283,679.05 × 728,911,451.10 - Step 4: Simplify right side
759,522,452.70x = 830,436,919,710,882,176 - Step 5: Solve for x
x = 830,436,919,710,882,176/759,522,452.70 - Step 6: Final answer
x = 1,093,367,176.65
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Double scale
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Similar ratio
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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.