Finding the Fourth Proportional to 2,139,418,190.80, 3,209,127,286.20 and 1,955,752,181.20
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Solution
The fourth proportional to 2,139,418,190.80, 3,209,127,286.20 and 1,955,752,181.20 is: 2,933,628,271.80
Step by Step Solution
- Step 1: Write the proportion equation
2,139,418,190.80 : 3,209,127,286.20 = 1,955,752,181.20 : x - Step 2: Convert to fraction form
2,139,418,190.80/3,209,127,286.20 = 1,955,752,181.20/x - Step 3: Cross multiply
2,139,418,190.80x = 3,209,127,286.20 × 1,955,752,181.20 - Step 4: Simplify right side
2,139,418,190.80x = 6,276,257,689,734,086,656 - Step 5: Solve for x
x = 6,276,257,689,734,086,656/2,139,418,190.80 - Step 6: Final answer
x = 2,933,628,271.80
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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.