Finding the Fourth Proportional to 87,915,132.48, 121,330,145.76 and 48,769,530.24
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Solution
The fourth proportional to 87,915,132.48, 121,330,145.76 and 48,769,530.24 is: 67,305,980.73
Step by Step Solution
- Step 1: Write the proportion equation
87,915,132.48 : 121,330,145.76 = 48,769,530.24 : x - Step 2: Convert to fraction form
87,915,132.48/121,330,145.76 = 48,769,530.24/x - Step 3: Cross multiply
87,915,132.48x = 121,330,145.76 × 48,769,530.24 - Step 4: Simplify right side
87,915,132.48x = 5,917,214,212,665,928 - Step 5: Solve for x
x = 5,917,214,212,665,928/87,915,132.48 - Step 6: Final answer
x = 67,305,980.73
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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.