Finding the Fourth Proportional to 2,519,512,933.60, 3,779,269,400.40 and 679,451,615.20
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Solution
The fourth proportional to 2,519,512,933.60, 3,779,269,400.40 and 679,451,615.20 is: 1,019,177,422.80
Step by Step Solution
- Step 1: Write the proportion equation
2,519,512,933.60 : 3,779,269,400.40 = 679,451,615.20 : x - Step 2: Convert to fraction form
2,519,512,933.60/3,779,269,400.40 = 679,451,615.20/x - Step 3: Cross multiply
2,519,512,933.60x = 3,779,269,400.40 × 679,451,615.20 - Step 4: Simplify right side
2,519,512,933.60x = 2,567,830,698,377,715,712 - Step 5: Solve for x
x = 2,567,830,698,377,715,712/2,519,512,933.60 - Step 6: Final answer
x = 1,019,177,422.80
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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.