Finding the Fourth Proportional to 280,883,078.63, 387,619,286.24 and 155,444,402.19
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Solution
The fourth proportional to 280,883,078.63, 387,619,286.24 and 155,444,402.19 is: 214,513,627.96
Step by Step Solution
- Step 1: Write the proportion equation
280,883,078.63 : 387,619,286.24 = 155,444,402.19 : x - Step 2: Convert to fraction form
280,883,078.63/387,619,286.24 = 155,444,402.19/x - Step 3: Cross multiply
280,883,078.63x = 387,619,286.24 × 155,444,402.19 - Step 4: Simplify right side
280,883,078.63x = 60,253,248,227,858,320 - Step 5: Solve for x
x = 60,253,248,227,858,320/280,883,078.63 - Step 6: Final answer
x = 214,513,627.96
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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.