Finding the Fourth Proportional to 910,509,615.92, 1,365,765,408.84 and 426,175,546.16
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Solution
The fourth proportional to 910,509,615.92, 1,365,765,408.84 and 426,175,546.16 is: 639,263,780.26
Step by Step Solution
- Step 1: Write the proportion equation
910,509,615.92 : 1,365,765,408.84 = 426,175,546.16 : x - Step 2: Convert to fraction form
910,509,615.92/1,365,765,408.84 = 426,175,546.16/x - Step 3: Cross multiply
910,509,615.92x = 1,365,765,408.84 × 426,175,546.16 - Step 4: Simplify right side
910,509,615.92x = 582,055,819,038,822,656 - Step 5: Solve for x
x = 582,055,819,038,822,656/910,509,615.92 - Step 6: Final answer
x = 639,263,780.26
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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.