Finding the Fourth Proportional to 25,664,212.53, 38,355,418.61 and 18,762,221.81
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Solution
The fourth proportional to 25,664,212.53, 38,355,418.61 and 18,762,221.81 is: 28,040,325.45
Step by Step Solution
- Step 1: Write the proportion equation
25,664,212.53 : 38,355,418.61 = 18,762,221.81 : x - Step 2: Convert to fraction form
25,664,212.53/38,355,418.61 = 18,762,221.81/x - Step 3: Cross multiply
25,664,212.53x = 38,355,418.61 × 18,762,221.81 - Step 4: Simplify right side
25,664,212.53x = 719,632,871,648,657.62 - Step 5: Solve for x
x = 719,632,871,648,657.62/25,664,212.53 - Step 6: Final answer
x = 28,040,325.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.