Finding the Fourth Proportional to 2,807,889,322.20, 4,211,833,983.30 and 1,991,595,946.20
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Solution
The fourth proportional to 2,807,889,322.20, 4,211,833,983.30 and 1,991,595,946.20 is: 2,987,393,919.30
Step by Step Solution
- Step 1: Write the proportion equation
2,807,889,322.20 : 4,211,833,983.30 = 1,991,595,946.20 : x - Step 2: Convert to fraction form
2,807,889,322.20/4,211,833,983.30 = 1,991,595,946.20/x - Step 3: Cross multiply
2,807,889,322.20x = 4,211,833,983.30 × 1,991,595,946.20 - Step 4: Simplify right side
2,807,889,322.20x = 8,388,271,487,207,678,976 - Step 5: Solve for x
x = 8,388,271,487,207,678,976/2,807,889,322.20 - Step 6: Final answer
x = 2,987,393,919.30
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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.