Finding the Fourth Proportional to 90,101,708.10, 135,165,124.35 and 27,858,103.83
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Solution
The fourth proportional to 90,101,708.10, 135,165,124.35 and 27,858,103.83 is: 41,791,039.79
Step by Step Solution
- Step 1: Write the proportion equation
90,101,708.10 : 135,165,124.35 = 27,858,103.83 : x - Step 2: Convert to fraction form
90,101,708.10/135,165,124.35 = 27,858,103.83/x - Step 3: Cross multiply
90,101,708.10x = 135,165,124.35 × 27,858,103.83 - Step 4: Simplify right side
90,101,708.10x = 3,765,444,068,337,161 - Step 5: Solve for x
x = 3,765,444,068,337,161/90,101,708.10 - Step 6: Final answer
x = 41,791,039.79
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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.