Finding the Fourth Proportional to 4,901,067,775.20, 7,351,601,662.80 and 1,220,573,129.70
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Solution
The fourth proportional to 4,901,067,775.20, 7,351,601,662.80 and 1,220,573,129.70 is: 1,830,859,694.55
Step by Step Solution
- Step 1: Write the proportion equation
4,901,067,775.20 : 7,351,601,662.80 = 1,220,573,129.70 : x - Step 2: Convert to fraction form
4,901,067,775.20/7,351,601,662.80 = 1,220,573,129.70/x - Step 3: Cross multiply
4,901,067,775.20x = 7,351,601,662.80 × 1,220,573,129.70 - Step 4: Simplify right side
4,901,067,775.20x = 8,973,167,449,871,520,768 - Step 5: Solve for x
x = 8,973,167,449,871,520,768/4,901,067,775.20 - Step 6: Final answer
x = 1,830,859,694.55
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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.