Finding the Fourth Proportional to 153,414,558.55, 211,659,576.55 and 87,318,519.67
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Solution
The fourth proportional to 153,414,558.55, 211,659,576.55 and 87,318,519.67 is: 120,469,667.76
Step by Step Solution
- Step 1: Write the proportion equation
153,414,558.55 : 211,659,576.55 = 87,318,519.67 : x - Step 2: Convert to fraction form
153,414,558.55/211,659,576.55 = 87,318,519.67/x - Step 3: Cross multiply
153,414,558.55x = 211,659,576.55 × 87,318,519.67 - Step 4: Simplify right side
153,414,558.55x = 18,481,800,898,325,048 - Step 5: Solve for x
x = 18,481,800,898,325,048/153,414,558.55 - Step 6: Final answer
x = 120,469,667.76
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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.