Finding the Fourth Proportional to 81,504,605.41, 122,230,970.28 and 26,907,025.21
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Solution
The fourth proportional to 81,504,605.41, 122,230,970.28 and 26,907,025.21 is: 40,351,974.99
Step by Step Solution
- Step 1: Write the proportion equation
81,504,605.41 : 122,230,970.28 = 26,907,025.21 : x - Step 2: Convert to fraction form
81,504,605.41/122,230,970.28 = 26,907,025.21/x - Step 3: Cross multiply
81,504,605.41x = 122,230,970.28 × 26,907,025.21 - Step 4: Simplify right side
81,504,605.41x = 3,288,871,798,766,721 - Step 5: Solve for x
x = 3,288,871,798,766,721/81,504,605.41 - Step 6: Final answer
x = 40,351,974.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.