Finding the Fourth Proportional to 80,819,378.40, 121,230,117.40 and 26,966,690.40
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Solution
The fourth proportional to 80,819,378.40, 121,230,117.40 and 26,966,690.40 is: 40,450,385.88
Step by Step Solution
- Step 1: Write the proportion equation
80,819,378.40 : 121,230,117.40 = 26,966,690.40 : x - Step 2: Convert to fraction form
80,819,378.40/121,230,117.40 = 26,966,690.40/x - Step 3: Cross multiply
80,819,378.40x = 121,230,117.40 × 26,966,690.40 - Step 4: Simplify right side
80,819,378.40x = 3,269,175,043,081,453 - Step 5: Solve for x
x = 3,269,175,043,081,453/80,819,378.40 - Step 6: Final answer
x = 40,450,385.88
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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.