Finding the Fourth Proportional to 2,085,996,069.80, 3,129,414,008.70 and 612,133,029.80
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Solution
The fourth proportional to 2,085,996,069.80, 3,129,414,008.70 and 612,133,029.80 is: 918,322,765.02
Step by Step Solution
- Step 1: Write the proportion equation
2,085,996,069.80 : 3,129,414,008.70 = 612,133,029.80 : x - Step 2: Convert to fraction form
2,085,996,069.80/3,129,414,008.70 = 612,133,029.80/x - Step 3: Cross multiply
2,085,996,069.80x = 3,129,414,008.70 × 612,133,029.80 - Step 4: Simplify right side
2,085,996,069.80x = 1,915,617,678,644,094,208 - Step 5: Solve for x
x = 1,915,617,678,644,094,208/2,085,996,069.80 - Step 6: Final answer
x = 918,322,765.02
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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.