Finding the Fourth Proportional to 122,475,980.34, 169,016,843.90 and 67,471,836.84
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Solution
The fourth proportional to 122,475,980.34, 169,016,843.90 and 67,471,836.84 is: 93,111,129.90
Step by Step Solution
- Step 1: Write the proportion equation
122,475,980.34 : 169,016,843.90 = 67,471,836.84 : x - Step 2: Convert to fraction form
122,475,980.34/169,016,843.90 = 67,471,836.84/x - Step 3: Cross multiply
122,475,980.34x = 169,016,843.90 × 67,471,836.84 - Step 4: Simplify right side
122,475,980.34x = 11,403,876,915,001,230 - Step 5: Solve for x
x = 11,403,876,915,001,230/122,475,980.34 - Step 6: Final answer
x = 93,111,129.90
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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.