Finding the Fourth Proportional to 81,529,194.75, 112,473,215.46 and 48,470,686.02
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Solution
The fourth proportional to 81,529,194.75, 112,473,215.46 and 48,470,686.02 is: 66,867,505.92
Step by Step Solution
- Step 1: Write the proportion equation
81,529,194.75 : 112,473,215.46 = 48,470,686.02 : x - Step 2: Convert to fraction form
81,529,194.75/112,473,215.46 = 48,470,686.02/x - Step 3: Cross multiply
81,529,194.75x = 112,473,215.46 × 48,470,686.02 - Step 4: Simplify right side
81,529,194.75x = 5,451,653,912,221,470 - Step 5: Solve for x
x = 5,451,653,912,221,470/81,529,194.75 - Step 6: Final answer
x = 66,867,505.92
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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.