Finding the Fourth Proportional to 45,555,101.70, 68,338,646.55 and 16,821,420.90
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Solution
The fourth proportional to 45,555,101.70, 68,338,646.55 and 16,821,420.90 is: 25,234,344.66
Step by Step Solution
- Step 1: Write the proportion equation
45,555,101.70 : 68,338,646.55 = 16,821,420.90 : x - Step 2: Convert to fraction form
45,555,101.70/68,338,646.55 = 16,821,420.90/x - Step 3: Cross multiply
45,555,101.70x = 68,338,646.55 × 16,821,420.90 - Step 4: Simplify right side
45,555,101.70x = 1,149,553,137,353,882.75 - Step 5: Solve for x
x = 1,149,553,137,353,882.75/45,555,101.70 - Step 6: Final answer
x = 25,234,344.66
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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.