Finding the Fourth Proportional to 122,922,368.16, 169,632,519.84 and 67,917,832.80
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Solution
The fourth proportional to 122,922,368.16, 169,632,519.84 and 67,917,832.80 is: 93,726,416.86
Step by Step Solution
- Step 1: Write the proportion equation
122,922,368.16 : 169,632,519.84 = 67,917,832.80 : x - Step 2: Convert to fraction form
122,922,368.16/169,632,519.84 = 67,917,832.80/x - Step 3: Cross multiply
122,922,368.16x = 169,632,519.84 × 67,917,832.80 - Step 4: Simplify right side
122,922,368.16x = 11,521,073,119,935,802 - Step 5: Solve for x
x = 11,521,073,119,935,802/122,922,368.16 - Step 6: Final answer
x = 93,726,416.86
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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.