Finding the Fourth Proportional to 2,125,767,809.40, 3,188,651,714.10 and 1,431,918,439.80
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Solution
The fourth proportional to 2,125,767,809.40, 3,188,651,714.10 and 1,431,918,439.80 is: 2,147,877,659.70
Step by Step Solution
- Step 1: Write the proportion equation
2,125,767,809.40 : 3,188,651,714.10 = 1,431,918,439.80 : x - Step 2: Convert to fraction form
2,125,767,809.40/3,188,651,714.10 = 1,431,918,439.80/x - Step 3: Cross multiply
2,125,767,809.40x = 3,188,651,714.10 × 1,431,918,439.80 - Step 4: Simplify right side
2,125,767,809.40x = 4,565,889,187,519,667,200 - Step 5: Solve for x
x = 4,565,889,187,519,667,200/2,125,767,809.40 - Step 6: Final answer
x = 2,147,877,659.70
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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.