Finding the Fourth Proportional to 1,513,361,568.40, 2,270,042,352.60 and 929,201,621.20
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Solution
The fourth proportional to 1,513,361,568.40, 2,270,042,352.60 and 929,201,621.20 is: 1,393,802,431.80
Step by Step Solution
- Step 1: Write the proportion equation
1,513,361,568.40 : 2,270,042,352.60 = 929,201,621.20 : x - Step 2: Convert to fraction form
1,513,361,568.40/2,270,042,352.60 = 929,201,621.20/x - Step 3: Cross multiply
1,513,361,568.40x = 2,270,042,352.60 × 929,201,621.20 - Step 4: Simplify right side
1,513,361,568.40x = 2,109,327,034,228,582,144 - Step 5: Solve for x
x = 2,109,327,034,228,582,144/1,513,361,568.40 - Step 6: Final answer
x = 1,393,802,431.80
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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.