Finding the Fourth Proportional to 979,680,023.20, 1,467,504,495.60 and 495,278,768.80
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Solution
The fourth proportional to 979,680,023.20, 1,467,504,495.60 and 495,278,768.80 is: 741,899,194.20
Step by Step Solution
- Step 1: Write the proportion equation
979,680,023.20 : 1,467,504,495.60 = 495,278,768.80 : x - Step 2: Convert to fraction form
979,680,023.20/1,467,504,495.60 = 495,278,768.80/x - Step 3: Cross multiply
979,680,023.20x = 1,467,504,495.60 × 495,278,768.80 - Step 4: Simplify right side
979,680,023.20x = 726,823,819,789,233,024 - Step 5: Solve for x
x = 726,823,819,789,233,024/979,680,023.20 - Step 6: Final answer
x = 741,899,194.20
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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.