Finding the Fourth Proportional to 20,994,039.90, 31,471,245.45 and 11,395,268.70
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Solution
The fourth proportional to 20,994,039.90, 31,471,245.45 and 11,395,268.70 is: 17,082,148.07
Step by Step Solution
- Step 1: Write the proportion equation
20,994,039.90 : 31,471,245.45 = 11,395,268.70 : x - Step 2: Convert to fraction form
20,994,039.90/31,471,245.45 = 11,395,268.70/x - Step 3: Cross multiply
20,994,039.90x = 31,471,245.45 × 11,395,268.70 - Step 4: Simplify right side
20,994,039.90x = 358,623,298,226,402.38 - Step 5: Solve for x
x = 358,623,298,226,402.38/20,994,039.90 - Step 6: Final answer
x = 17,082,148.07
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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.