Finding the Fourth Proportional to 216,331,237.54, 298,551,754.92 and 122,212,741.20
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Solution
The fourth proportional to 216,331,237.54, 298,551,754.92 and 122,212,741.20 is: 168,661,857.50
Step by Step Solution
- Step 1: Write the proportion equation
216,331,237.54 : 298,551,754.92 = 122,212,741.20 : x - Step 2: Convert to fraction form
216,331,237.54/298,551,754.92 = 122,212,741.20/x - Step 3: Cross multiply
216,331,237.54x = 298,551,754.92 × 122,212,741.20 - Step 4: Simplify right side
216,331,237.54x = 36,486,828,358,843,792 - Step 5: Solve for x
x = 36,486,828,358,843,792/216,331,237.54 - Step 6: Final answer
x = 168,661,857.50
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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.