Finding the Fourth Proportional to 1,920,121,214.30, 2,880,181,821.45 and 1,436,391,806.30
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Solution
The fourth proportional to 1,920,121,214.30, 2,880,181,821.45 and 1,436,391,806.30 is: 2,154,587,709.45
Step by Step Solution
- Step 1: Write the proportion equation
1,920,121,214.30 : 2,880,181,821.45 = 1,436,391,806.30 : x - Step 2: Convert to fraction form
1,920,121,214.30/2,880,181,821.45 = 1,436,391,806.30/x - Step 3: Cross multiply
1,920,121,214.30x = 2,880,181,821.45 × 1,436,391,806.30 - Step 4: Simplify right side
1,920,121,214.30x = 4,137,069,568,984,989,184 - Step 5: Solve for x
x = 4,137,069,568,984,989,184/1,920,121,214.30 - Step 6: Final answer
x = 2,154,587,709.45
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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.