Finding the Fourth Proportional to 166,400,251.12, 229,637,212.17 and 91,051,102.72
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Solution
The fourth proportional to 166,400,251.12, 229,637,212.17 and 91,051,102.72 is: 125,653,184.13
Step by Step Solution
- Step 1: Write the proportion equation
166,400,251.12 : 229,637,212.17 = 91,051,102.72 : x - Step 2: Convert to fraction form
166,400,251.12/229,637,212.17 = 91,051,102.72/x - Step 3: Cross multiply
166,400,251.12x = 229,637,212.17 × 91,051,102.72 - Step 4: Simplify right side
166,400,251.12x = 20,908,721,393,625,104 - Step 5: Solve for x
x = 20,908,721,393,625,104/166,400,251.12 - Step 6: Final answer
x = 125,653,184.13
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1.5x scale
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.