Finding the Fourth Proportional to 20,869,399.76, 31,272,174.26 and 11,155,394.56
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Solution
The fourth proportional to 20,869,399.76, 31,272,174.26 and 11,155,394.56 is: 16,716,026.65
Step by Step Solution
- Step 1: Write the proportion equation
20,869,399.76 : 31,272,174.26 = 11,155,394.56 : x - Step 2: Convert to fraction form
20,869,399.76/31,272,174.26 = 11,155,394.56/x - Step 3: Cross multiply
20,869,399.76x = 31,272,174.26 × 11,155,394.56 - Step 4: Simplify right side
20,869,399.76x = 348,853,442,619,376.06 - Step 5: Solve for x
x = 348,853,442,619,376.06/20,869,399.76 - Step 6: Final answer
x = 16,716,026.65
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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.