Finding the Fourth Proportional to 80,876,693.80, 121,315,040.70 and 26,289,173.80
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Solution
The fourth proportional to 80,876,693.80, 121,315,040.70 and 26,289,173.80 is: 39,433,760.70
Step by Step Solution
- Step 1: Write the proportion equation
80,876,693.80 : 121,315,040.70 = 26,289,173.80 : x - Step 2: Convert to fraction form
80,876,693.80/121,315,040.70 = 26,289,173.80/x - Step 3: Cross multiply
80,876,693.80x = 121,315,040.70 × 26,289,173.80 - Step 4: Simplify right side
80,876,693.80x = 3,189,272,189,516,374 - Step 5: Solve for x
x = 3,189,272,189,516,374/80,876,693.80 - Step 6: Final answer
x = 39,433,760.70
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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.