Finding the Fourth Proportional to 954,258,220.40, 1,431,387,330.60 and 709,370,207.60
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Solution
The fourth proportional to 954,258,220.40, 1,431,387,330.60 and 709,370,207.60 is: 1,064,055,311.40
Step by Step Solution
- Step 1: Write the proportion equation
954,258,220.40 : 1,431,387,330.60 = 709,370,207.60 : x - Step 2: Convert to fraction form
954,258,220.40/1,431,387,330.60 = 709,370,207.60/x - Step 3: Cross multiply
954,258,220.40x = 1,431,387,330.60 × 709,370,207.60 - Step 4: Simplify right side
954,258,220.40x = 1,015,383,527,863,731,840 - Step 5: Solve for x
x = 1,015,383,527,863,731,840/954,258,220.40 - Step 6: Final answer
x = 1,064,055,311.40
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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.