Finding the Fourth Proportional to 126,542,256.36, 189,506,861.29 and 87,571,506.79
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Solution
The fourth proportional to 126,542,256.36, 189,506,861.29 and 87,571,506.79 is: 131,145,135.76
Step by Step Solution
- Step 1: Write the proportion equation
126,542,256.36 : 189,506,861.29 = 87,571,506.79 : x - Step 2: Convert to fraction form
126,542,256.36/189,506,861.29 = 87,571,506.79/x - Step 3: Cross multiply
126,542,256.36x = 189,506,861.29 × 87,571,506.79 - Step 4: Simplify right side
126,542,256.36x = 16,595,401,390,208,824 - Step 5: Solve for x
x = 16,595,401,390,208,824/126,542,256.36 - Step 6: Final answer
x = 131,145,135.76
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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.