Finding the Fourth Proportional to 85,921,514.24, 128,869,469.76 and 28,414,086.08
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Solution
The fourth proportional to 85,921,514.24, 128,869,469.76 and 28,414,086.08 is: 42,616,895.65
Step by Step Solution
- Step 1: Write the proportion equation
85,921,514.24 : 128,869,469.76 = 28,414,086.08 : x - Step 2: Convert to fraction form
85,921,514.24/128,869,469.76 = 28,414,086.08/x - Step 3: Cross multiply
85,921,514.24x = 128,869,469.76 × 28,414,086.08 - Step 4: Simplify right side
85,921,514.24x = 3,661,708,206,844,597 - Step 5: Solve for x
x = 3,661,708,206,844,597/85,921,514.24 - Step 6: Final answer
x = 42,616,895.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.