Finding the Fourth Proportional to 216,331,263.38, 298,551,790.59 and 122,212,767.08
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Solution
The fourth proportional to 216,331,263.38, 298,551,790.59 and 122,212,767.08 is: 168,661,893.22
Step by Step Solution
- Step 1: Write the proportion equation
216,331,263.38 : 298,551,790.59 = 122,212,767.08 : x - Step 2: Convert to fraction form
216,331,263.38/298,551,790.59 = 122,212,767.08/x - Step 3: Cross multiply
216,331,263.38x = 298,551,790.59 × 122,212,767.08 - Step 4: Simplify right side
216,331,263.38x = 36,486,840,444,980,688 - Step 5: Solve for x
x = 36,486,840,444,980,688/216,331,263.38 - Step 6: Final answer
x = 168,661,893.22
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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.