Finding the Fourth Proportional to 1,430,300,918.40, 2,145,451,377.60 and 1,236,431,241.60
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Solution
The fourth proportional to 1,430,300,918.40, 2,145,451,377.60 and 1,236,431,241.60 is: 1,854,646,862.40
Step by Step Solution
- Step 1: Write the proportion equation
1,430,300,918.40 : 2,145,451,377.60 = 1,236,431,241.60 : x - Step 2: Convert to fraction form
1,430,300,918.40/2,145,451,377.60 = 1,236,431,241.60/x - Step 3: Cross multiply
1,430,300,918.40x = 2,145,451,377.60 × 1,236,431,241.60 - Step 4: Simplify right side
1,430,300,918.40x = 2,652,703,110,598,397,952 - Step 5: Solve for x
x = 2,652,703,110,598,397,952/1,430,300,918.40 - Step 6: Final answer
x = 1,854,646,862.40
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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.