Finding the Fourth Proportional to 4,752,433,658.20, 7,128,331,622.70 and 1,258,764,143.80
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Solution
The fourth proportional to 4,752,433,658.20, 7,128,331,622.70 and 1,258,764,143.80 is: 1,888,061,758.90
Step by Step Solution
- Step 1: Write the proportion equation
4,752,433,658.20 : 7,128,331,622.70 = 1,258,764,143.80 : x - Step 2: Convert to fraction form
4,752,433,658.20/7,128,331,622.70 = 1,258,764,143.80/x - Step 3: Cross multiply
4,752,433,658.20x = 7,128,331,622.70 × 1,258,764,143.80 - Step 4: Simplify right side
4,752,433,658.20x = 8,972,888,251,770,429,440 - Step 5: Solve for x
x = 8,972,888,251,770,429,440/4,752,433,658.20 - Step 6: Final answer
x = 1,888,061,758.90
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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.