Finding the Fourth Proportional to 80,657,620.40, 120,986,430.60 and 26,804,932.40
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Solution
The fourth proportional to 80,657,620.40, 120,986,430.60 and 26,804,932.40 is: 40,207,398.60
Step by Step Solution
- Step 1: Write the proportion equation
80,657,620.40 : 120,986,430.60 = 26,804,932.40 : x - Step 2: Convert to fraction form
80,657,620.40/120,986,430.60 = 26,804,932.40/x - Step 3: Cross multiply
80,657,620.40x = 120,986,430.60 × 26,804,932.40 - Step 4: Simplify right side
80,657,620.40x = 3,243,033,093,550,291 - Step 5: Solve for x
x = 3,243,033,093,550,291/80,657,620.40 - Step 6: Final answer
x = 40,207,398.60
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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.