Finding the Fourth Proportional to 71,625,455.20, 107,438,182.80 and 71,625,455.20
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Solution
The fourth proportional to 71,625,455.20, 107,438,182.80 and 71,625,455.20 is: 107,438,182.80
Step by Step Solution
- Step 1: Write the proportion equation
71,625,455.20 : 107,438,182.80 = 71,625,455.20 : x - Step 2: Convert to fraction form
71,625,455.20/107,438,182.80 = 71,625,455.20/x - Step 3: Cross multiply
71,625,455.20x = 107,438,182.80 × 71,625,455.20 - Step 4: Simplify right side
71,625,455.20x = 7,695,308,748,910,811 - Step 5: Solve for x
x = 7,695,308,748,910,811/71,625,455.20 - Step 6: Final answer
x = 107,438,182.80
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1.5x scale
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.