Finding the Fourth Proportional to 216,277,262.81, 298,389,204.11 and 122,177,662.15
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Solution
The fourth proportional to 216,277,262.81, 298,389,204.11 and 122,177,662.15 is: 168,563,698.72
Step by Step Solution
- Step 1: Write the proportion equation
216,277,262.81 : 298,389,204.11 = 122,177,662.15 : x - Step 2: Convert to fraction form
216,277,262.81/298,389,204.11 = 122,177,662.15/x - Step 3: Cross multiply
216,277,262.81x = 298,389,204.11 × 122,177,662.15 - Step 4: Simplify right side
216,277,262.81x = 36,456,495,368,734,336 - Step 5: Solve for x
x = 36,456,495,368,734,336/216,277,262.81 - Step 6: Final answer
x = 168,563,698.72
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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.