Finding the Fourth Proportional to 15,148,838.73, 20,905,420.84 and 8,622,468.12
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Solution
The fourth proportional to 15,148,838.73, 20,905,420.84 and 8,622,468.12 is: 11,899,019.32
Step by Step Solution
- Step 1: Write the proportion equation
15,148,838.73 : 20,905,420.84 = 8,622,468.12 : x - Step 2: Convert to fraction form
15,148,838.73/20,905,420.84 = 8,622,468.12/x - Step 3: Cross multiply
15,148,838.73x = 20,905,420.84 × 8,622,468.12 - Step 4: Simplify right side
15,148,838.73x = 180,256,324,706,527.41 - Step 5: Solve for x
x = 180,256,324,706,527.41/15,148,838.73 - Step 6: Final answer
x = 11,899,019.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.