Finding the Fourth Proportional to 2,126,207,351.40, 3,189,311,027.10 and 1,305,658,948.20
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Solution
The fourth proportional to 2,126,207,351.40, 3,189,311,027.10 and 1,305,658,948.20 is: 1,958,488,422.30
Step by Step Solution
- Step 1: Write the proportion equation
2,126,207,351.40 : 3,189,311,027.10 = 1,305,658,948.20 : x - Step 2: Convert to fraction form
2,126,207,351.40/3,189,311,027.10 = 1,305,658,948.20/x - Step 3: Cross multiply
2,126,207,351.40x = 3,189,311,027.10 × 1,305,658,948.20 - Step 4: Simplify right side
2,126,207,351.40x = 4,164,152,481,126,047,744 - Step 5: Solve for x
x = 4,164,152,481,126,047,744/2,126,207,351.40 - Step 6: Final answer
x = 1,958,488,422.30
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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.