Finding the Fourth Proportional to 1,659,958,615.20, 2,489,937,922.80 and 511,101,271.20
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Solution
The fourth proportional to 1,659,958,615.20, 2,489,937,922.80 and 511,101,271.20 is: 766,651,906.80
Step by Step Solution
- Step 1: Write the proportion equation
1,659,958,615.20 : 2,489,937,922.80 = 511,101,271.20 : x - Step 2: Convert to fraction form
1,659,958,615.20/2,489,937,922.80 = 511,101,271.20/x - Step 3: Cross multiply
1,659,958,615.20x = 2,489,937,922.80 × 511,101,271.20 - Step 4: Simplify right side
1,659,958,615.20x = 1,272,610,437,552,167,424 - Step 5: Solve for x
x = 1,272,610,437,552,167,424/1,659,958,615.20 - Step 6: Final answer
x = 766,651,906.80
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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.