Finding the Fourth Proportional to 208,460,399.88, 312,738,637.14 and 72,145,782.84
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Solution
The fourth proportional to 208,460,399.88, 312,738,637.14 and 72,145,782.84 is: 108,235,299.43
Step by Step Solution
- Step 1: Write the proportion equation
208,460,399.88 : 312,738,637.14 = 72,145,782.84 : x - Step 2: Convert to fraction form
208,460,399.88/312,738,637.14 = 72,145,782.84/x - Step 3: Cross multiply
208,460,399.88x = 312,738,637.14 × 72,145,782.84 - Step 4: Simplify right side
208,460,399.88x = 22,562,773,800,780,000 - Step 5: Solve for x
x = 22,562,773,800,780,000/208,460,399.88 - Step 6: Final answer
x = 108,235,299.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.