Finding the Fourth Proportional to 129,303,617.80, 193,955,426.70 and 106,345,366.60
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Solution
The fourth proportional to 129,303,617.80, 193,955,426.70 and 106,345,366.60 is: 159,518,049.90
Step by Step Solution
- Step 1: Write the proportion equation
129,303,617.80 : 193,955,426.70 = 106,345,366.60 : x - Step 2: Convert to fraction form
129,303,617.80/193,955,426.70 = 106,345,366.60/x - Step 3: Cross multiply
129,303,617.80x = 193,955,426.70 × 106,345,366.60 - Step 4: Simplify right side
129,303,617.80x = 20,626,260,956,470,924 - Step 5: Solve for x
x = 20,626,260,956,470,924/129,303,617.80 - Step 6: Final answer
x = 159,518,049.90
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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.