Finding the Fourth Proportional to 159,430,496.80, 239,145,745.20 and 145,825,607.20
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Solution
The fourth proportional to 159,430,496.80, 239,145,745.20 and 145,825,607.20 is: 218,738,410.80
Step by Step Solution
- Step 1: Write the proportion equation
159,430,496.80 : 239,145,745.20 = 145,825,607.20 : x - Step 2: Convert to fraction form
159,430,496.80/239,145,745.20 = 145,825,607.20/x - Step 3: Cross multiply
159,430,496.80x = 239,145,745.20 × 145,825,607.20 - Step 4: Simplify right side
159,430,496.80x = 34,873,573,503,086,480 - Step 5: Solve for x
x = 34,873,573,503,086,480/159,430,496.80 - Step 6: Final answer
x = 218,738,410.80
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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.