Finding the Fourth Proportional to 219,177,186.24, 302,460,810 and 121,389,942.72
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Solution
The fourth proportional to 219,177,186.24, 302,460,810 and 121,389,942.72 is: 167,516,067.85
Step by Step Solution
- Step 1: Write the proportion equation
219,177,186.24 : 302,460,810 = 121,389,942.72 : x - Step 2: Convert to fraction form
219,177,186.24/302,460,810 = 121,389,942.72/x - Step 3: Cross multiply
219,177,186.24x = 302,460,810 × 121,389,942.72 - Step 4: Simplify right side
219,177,186.24x = 36,715,700,400,944,800 - Step 5: Solve for x
x = 36,715,700,400,944,800/219,177,186.24 - Step 6: Final answer
x = 167,516,067.85
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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.