Finding the Fourth Proportional to 57,437,313.30, 79,263,396.24 and 31,331,831.12
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Solution
The fourth proportional to 57,437,313.30, 79,263,396.24 and 31,331,831.12 is: 43,237,874.52
Step by Step Solution
- Step 1: Write the proportion equation
57,437,313.30 : 79,263,396.24 = 31,331,831.12 : x - Step 2: Convert to fraction form
57,437,313.30/79,263,396.24 = 31,331,831.12/x - Step 3: Cross multiply
57,437,313.30x = 79,263,396.24 × 31,331,831.12 - Step 4: Simplify right side
57,437,313.30x = 2,483,467,344,989,323 - Step 5: Solve for x
x = 2,483,467,344,989,323/57,437,313.30 - Step 6: Final answer
x = 43,237,874.52
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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.