Finding the Fourth Proportional to 18,518,399.95, 27,777,603.00 and 7,729,815.50
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Solution
The fourth proportional to 18,518,399.95, 27,777,603.00 and 7,729,815.50 is: 11,594,724.53
Step by Step Solution
- Step 1: Write the proportion equation
18,518,399.95 : 27,777,603.00 = 7,729,815.50 : x - Step 2: Convert to fraction form
18,518,399.95/27,777,603.00 = 7,729,815.50/x - Step 3: Cross multiply
18,518,399.95x = 27,777,603.00 × 7,729,815.50 - Step 4: Simplify right side
18,518,399.95x = 214,715,746,073,165.41 - Step 5: Solve for x
x = 214,715,746,073,165.41/18,518,399.95 - Step 6: Final answer
x = 11,594,724.53
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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.