Finding the Fourth Proportional to 20,269,041.42, 27,971,292.24 and 10,976,683.62
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Solution
The fourth proportional to 20,269,041.42, 27,971,292.24 and 10,976,683.62 is: 15,147,831.56
Step by Step Solution
- Step 1: Write the proportion equation
20,269,041.42 : 27,971,292.24 = 10,976,683.62 : x - Step 2: Convert to fraction form
20,269,041.42/27,971,292.24 = 10,976,683.62/x - Step 3: Cross multiply
20,269,041.42x = 27,971,292.24 × 10,976,683.62 - Step 4: Simplify right side
20,269,041.42x = 307,032,025,361,041.06 - Step 5: Solve for x
x = 307,032,025,361,041.06/20,269,041.42 - Step 6: Final answer
x = 15,147,831.56
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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.