Finding the Fourth Proportional to 112,131,446.70, 168,197,170.05 and 110,619,792.30
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Solution
The fourth proportional to 112,131,446.70, 168,197,170.05 and 110,619,792.30 is: 165,929,688.45
Step by Step Solution
- Step 1: Write the proportion equation
112,131,446.70 : 168,197,170.05 = 110,619,792.30 : x - Step 2: Convert to fraction form
112,131,446.70/168,197,170.05 = 110,619,792.30/x - Step 3: Cross multiply
112,131,446.70x = 168,197,170.05 × 110,619,792.30 - Step 4: Simplify right side
112,131,446.70x = 18,605,936,016,378,780 - Step 5: Solve for x
x = 18,605,936,016,378,780/112,131,446.70 - Step 6: Final answer
x = 165,929,688.45
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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.