Finding the Fourth Proportional to 39,795,641.99, 59,705,645.49 and 20,378,615.97
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Solution
The fourth proportional to 39,795,641.99, 59,705,645.49 and 20,378,615.97 is: 30,574,162.40
Step by Step Solution
- Step 1: Write the proportion equation
39,795,641.99 : 59,705,645.49 = 20,378,615.97 : x - Step 2: Convert to fraction form
39,795,641.99/59,705,645.49 = 20,378,615.97/x - Step 3: Cross multiply
39,795,641.99x = 59,705,645.49 × 20,378,615.97 - Step 4: Simplify right side
39,795,641.99x = 1,216,718,420,962,914 - Step 5: Solve for x
x = 1,216,718,420,962,914/39,795,641.99 - Step 6: Final answer
x = 30,574,162.40
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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.