Finding the Fourth Proportional to 2,125,767,506.40, 3,188,651,259.60 and 1,431,918,136.80
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Solution
The fourth proportional to 2,125,767,506.40, 3,188,651,259.60 and 1,431,918,136.80 is: 2,147,877,205.20
Step by Step Solution
- Step 1: Write the proportion equation
2,125,767,506.40 : 3,188,651,259.60 = 1,431,918,136.80 : x - Step 2: Convert to fraction form
2,125,767,506.40/3,188,651,259.60 = 1,431,918,136.80/x - Step 3: Cross multiply
2,125,767,506.40x = 3,188,651,259.60 × 1,431,918,136.80 - Step 4: Simplify right side
2,125,767,506.40x = 4,565,887,570,551,405,056 - Step 5: Solve for x
x = 4,565,887,570,551,405,056/2,125,767,506.40 - Step 6: Final answer
x = 2,147,877,205.20
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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.