Finding the Fourth Proportional to 20,954,645.99, 31,431,977.58 and 9,426,648.02
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Solution
The fourth proportional to 20,954,645.99, 31,431,977.58 and 9,426,648.02 is: 14,139,975.90
Step by Step Solution
- Step 1: Write the proportion equation
20,954,645.99 : 31,431,977.58 = 9,426,648.02 : x - Step 2: Convert to fraction form
20,954,645.99/31,431,977.58 = 9,426,648.02/x - Step 3: Cross multiply
20,954,645.99x = 31,431,977.58 × 9,426,648.02 - Step 4: Simplify right side
20,954,645.99x = 296,298,189,219,191.38 - Step 5: Solve for x
x = 296,298,189,219,191.38/20,954,645.99 - Step 6: Final answer
x = 14,139,975.90
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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.