Finding the Fourth Proportional to 197,629,244,856.08, 272,767,470,481.30 and 128,190,940,013.62
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Solution
The fourth proportional to 197,629,244,856.08, 272,767,470,481.30 and 128,190,940,013.62 is: 176,928,867,342.48
Step by Step Solution
- Step 1: Write the proportion equation
197,629,244,856.08 : 272,767,470,481.30 = 128,190,940,013.62 : x - Step 2: Convert to fraction form
197,629,244,856.08/272,767,470,481.30 = 128,190,940,013.62/x - Step 3: Cross multiply
197,629,244,856.08x = 272,767,470,481.30 × 128,190,940,013.62 - Step 4: Simplify right side
197,629,244,856.08x = 34,966,318,446,135,191,011,328 - Step 5: Solve for x
x = 34,966,318,446,135,191,011,328/197,629,244,856.08 - Step 6: Final answer
x = 176,928,867,342.48
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1.5x scale
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.