Finding the Fourth Proportional to 1,618,417,519.26, 2,233,416,149.49 and 875,861,582.01
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Solution
The fourth proportional to 1,618,417,519.26, 2,233,416,149.49 and 875,861,582.01 is: 1,208,688,968.51
Step by Step Solution
- Step 1: Write the proportion equation
1,618,417,519.26 : 2,233,416,149.49 = 875,861,582.01 : x - Step 2: Convert to fraction form
1,618,417,519.26/2,233,416,149.49 = 875,861,582.01/x - Step 3: Cross multiply
1,618,417,519.26x = 2,233,416,149.49 × 875,861,582.01 - Step 4: Simplify right side
1,618,417,519.26x = 1,956,163,401,978,993,920 - Step 5: Solve for x
x = 1,956,163,401,978,993,920/1,618,417,519.26 - Step 6: Final answer
x = 1,208,688,968.51
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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.