Finding the Fourth Proportional to 121,397,078.04, 167,517,840.33 and 68,470,869.12
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Solution
The fourth proportional to 121,397,078.04, 167,517,840.33 and 68,470,869.12 is: 94,484,087.31
Step by Step Solution
- Step 1: Write the proportion equation
121,397,078.04 : 167,517,840.33 = 68,470,869.12 : x - Step 2: Convert to fraction form
121,397,078.04/167,517,840.33 = 68,470,869.12/x - Step 3: Cross multiply
121,397,078.04x = 167,517,840.33 × 68,470,869.12 - Step 4: Simplify right side
121,397,078.04x = 11,470,092,120,500,490 - Step 5: Solve for x
x = 11,470,092,120,500,490/121,397,078.04 - Step 6: Final answer
x = 94,484,087.31
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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.