Finding the Fourth Proportional to 1,304,734,395.70, 1,800,533,762.85 and 718,023,531.70
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Solution
The fourth proportional to 1,304,734,395.70, 1,800,533,762.85 and 718,023,531.70 is: 990,872,637.07
Step by Step Solution
- Step 1: Write the proportion equation
1,304,734,395.70 : 1,800,533,762.85 = 718,023,531.70 : x - Step 2: Convert to fraction form
1,304,734,395.70/1,800,533,762.85 = 718,023,531.70/x - Step 3: Cross multiply
1,304,734,395.70x = 1,800,533,762.85 × 718,023,531.70 - Step 4: Simplify right side
1,304,734,395.70x = 1,292,825,611,346,647,296 - Step 5: Solve for x
x = 1,292,825,611,346,647,296/1,304,734,395.70 - Step 6: Final answer
x = 990,872,637.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.