Finding the Fourth Proportional to 826,056,344.40, 1,239,084,516.60 and 458,724,325.20
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Solution
The fourth proportional to 826,056,344.40, 1,239,084,516.60 and 458,724,325.20 is: 688,086,487.80
Step by Step Solution
- Step 1: Write the proportion equation
826,056,344.40 : 1,239,084,516.60 = 458,724,325.20 : x - Step 2: Convert to fraction form
826,056,344.40/1,239,084,516.60 = 458,724,325.20/x - Step 3: Cross multiply
826,056,344.40x = 1,239,084,516.60 × 458,724,325.20 - Step 4: Simplify right side
826,056,344.40x = 568,398,208,743,103,168 - Step 5: Solve for x
x = 568,398,208,743,103,168/826,056,344.40 - Step 6: Final answer
x = 688,086,487.80
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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.