Finding the Fourth Proportional to 197,640,867.38, 296,392,905.68 and 81,023,115.24
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Solution
The fourth proportional to 197,640,867.38, 296,392,905.68 and 81,023,115.24 is: 121,506,634.09
Step by Step Solution
- Step 1: Write the proportion equation
197,640,867.38 : 296,392,905.68 = 81,023,115.24 : x - Step 2: Convert to fraction form
197,640,867.38/296,392,905.68 = 81,023,115.24/x - Step 3: Cross multiply
197,640,867.38x = 296,392,905.68 × 81,023,115.24 - Step 4: Simplify right side
197,640,867.38x = 24,014,676,552,823,976 - Step 5: Solve for x
x = 24,014,676,552,823,976/197,640,867.38 - Step 6: Final answer
x = 121,506,634.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.