Finding the Fourth Proportional to 121,195,091.20, 167,250,288 and 68,987,483.68
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Solution
The fourth proportional to 121,195,091.20, 167,250,288 and 68,987,483.68 is: 95,203,332.08
Step by Step Solution
- Step 1: Write the proportion equation
121,195,091.20 : 167,250,288 = 68,987,483.68 : x - Step 2: Convert to fraction form
121,195,091.20/167,250,288 = 68,987,483.68/x - Step 3: Cross multiply
121,195,091.20x = 167,250,288 × 68,987,483.68 - Step 4: Simplify right side
121,195,091.20x = 11,538,176,513,875,302 - Step 5: Solve for x
x = 11,538,176,513,875,302/121,195,091.20 - Step 6: Final answer
x = 95,203,332.08
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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.