Finding the Fourth Proportional to 1,036,157,551.40, 1,554,236,327.10 and 422,407,202.60
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Solution
The fourth proportional to 1,036,157,551.40, 1,554,236,327.10 and 422,407,202.60 is: 633,610,803.90
Step by Step Solution
- Step 1: Write the proportion equation
1,036,157,551.40 : 1,554,236,327.10 = 422,407,202.60 : x - Step 2: Convert to fraction form
1,036,157,551.40/1,554,236,327.10 = 422,407,202.60/x - Step 3: Cross multiply
1,036,157,551.40x = 1,554,236,327.10 × 422,407,202.60 - Step 4: Simplify right side
1,036,157,551.40x = 656,520,619,109,609,600 - Step 5: Solve for x
x = 656,520,619,109,609,600/1,036,157,551.40 - Step 6: Final answer
x = 633,610,803.90
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Double scale
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Similar ratio
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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.