Finding the Fourth Proportional to 958,323,435.68, 1,322,486,331 and 518,290,287.68
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Solution
The fourth proportional to 958,323,435.68, 1,322,486,331 and 518,290,287.68 is: 715,240,591.46
Step by Step Solution
- Step 1: Write the proportion equation
958,323,435.68 : 1,322,486,331 = 518,290,287.68 : x - Step 2: Convert to fraction form
958,323,435.68/1,322,486,331 = 518,290,287.68/x - Step 3: Cross multiply
958,323,435.68x = 1,322,486,331 × 518,290,287.68 - Step 4: Simplify right side
958,323,435.68x = 685,431,820,946,857,728 - Step 5: Solve for x
x = 685,431,820,946,857,728/958,323,435.68 - Step 6: Final answer
x = 715,240,591.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.