Finding the Fourth Proportional to 2,139,417,805.80, 3,209,126,708.70 and 1,955,751,796.20
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Solution
The fourth proportional to 2,139,417,805.80, 3,209,126,708.70 and 1,955,751,796.20 is: 2,933,627,694.30
Step by Step Solution
- Step 1: Write the proportion equation
2,139,417,805.80 : 3,209,126,708.70 = 1,955,751,796.20 : x - Step 2: Convert to fraction form
2,139,417,805.80/3,209,126,708.70 = 1,955,751,796.20/x - Step 3: Cross multiply
2,139,417,805.80x = 3,209,126,708.70 × 1,955,751,796.20 - Step 4: Simplify right side
2,139,417,805.80x = 6,276,255,324,773,419,008 - Step 5: Solve for x
x = 6,276,255,324,773,419,008/2,139,417,805.80 - Step 6: Final answer
x = 2,933,627,694.30
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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.