Finding the Fourth Proportional to 87,400,948.96, 120,613,316.79 and 48,242,735.86
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Solution
The fourth proportional to 87,400,948.96, 120,613,316.79 and 48,242,735.86 is: 66,574,979.47
Step by Step Solution
- Step 1: Write the proportion equation
87,400,948.96 : 120,613,316.79 = 48,242,735.86 : x - Step 2: Convert to fraction form
87,400,948.96/120,613,316.79 = 48,242,735.86/x - Step 3: Cross multiply
87,400,948.96x = 120,613,316.79 × 48,242,735.86 - Step 4: Simplify right side
87,400,948.96x = 5,818,716,383,098,473 - Step 5: Solve for x
x = 5,818,716,383,098,473/87,400,948.96 - Step 6: Final answer
x = 66,574,979.47
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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.