Finding the Fourth Proportional to 407,832,786.05, 562,876,742.20 and 240,609,930.05
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Solution
The fourth proportional to 407,832,786.05, 562,876,742.20 and 240,609,930.05 is: 332,081,525.08
Step by Step Solution
- Step 1: Write the proportion equation
407,832,786.05 : 562,876,742.20 = 240,609,930.05 : x - Step 2: Convert to fraction form
407,832,786.05/562,876,742.20 = 240,609,930.05/x - Step 3: Cross multiply
407,832,786.05x = 562,876,742.20 × 240,609,930.05 - Step 4: Simplify right side
407,832,786.05x = 135,433,733,567,513,904 - Step 5: Solve for x
x = 135,433,733,567,513,904/407,832,786.05 - Step 6: Final answer
x = 332,081,525.08
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1.5x scale
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.