Finding the Fourth Proportional to 61,207,480.80, 91,811,221.20 and 53,235,865.80
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Solution
The fourth proportional to 61,207,480.80, 91,811,221.20 and 53,235,865.80 is: 79,853,798.70
Step by Step Solution
- Step 1: Write the proportion equation
61,207,480.80 : 91,811,221.20 = 53,235,865.80 : x - Step 2: Convert to fraction form
61,207,480.80/91,811,221.20 = 53,235,865.80/x - Step 3: Cross multiply
61,207,480.80x = 91,811,221.20 × 53,235,865.80 - Step 4: Simplify right side
61,207,480.80x = 4,887,649,850,737,315 - Step 5: Solve for x
x = 4,887,649,850,737,315/61,207,480.80 - Step 6: Final answer
x = 79,853,798.70
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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.