Finding the Fourth Proportional to 5,614,831.78, 7,748,491.20 and 3,036,512.53
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Solution
The fourth proportional to 5,614,831.78, 7,748,491.20 and 3,036,512.53 is: 4,190,399.92
Step by Step Solution
- Step 1: Write the proportion equation
5,614,831.78 : 7,748,491.20 = 3,036,512.53 : x - Step 2: Convert to fraction form
5,614,831.78/7,748,491.20 = 3,036,512.53/x - Step 3: Cross multiply
5,614,831.78x = 7,748,491.20 × 3,036,512.53 - Step 4: Simplify right side
5,614,831.78x = 23,528,390,617,394.73 - Step 5: Solve for x
x = 23,528,390,617,394.73/5,614,831.78 - Step 6: Final answer
x = 4,190,399.92
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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.