Finding the Fourth Proportional to 68,814,453.36, 103,223,915.68 and 20,288,237.92
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Solution
The fourth proportional to 68,814,453.36, 103,223,915.68 and 20,288,237.92 is: 30,433,016.00
Step by Step Solution
- Step 1: Write the proportion equation
68,814,453.36 : 103,223,915.68 = 20,288,237.92 : x - Step 2: Convert to fraction form
68,814,453.36/103,223,915.68 = 20,288,237.92/x - Step 3: Cross multiply
68,814,453.36x = 103,223,915.68 × 20,288,237.92 - Step 4: Simplify right side
68,814,453.36x = 2,094,231,360,349,859 - Step 5: Solve for x
x = 2,094,231,360,349,859/68,814,453.36 - Step 6: Final answer
x = 30,433,016.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.