Finding the Fourth Proportional to 197,313,220, 272,273,799.90 and 117,912,529.36
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Solution
The fourth proportional to 197,313,220, 272,273,799.90 and 117,912,529.36 is: 162,708,268.73
Step by Step Solution
- Step 1: Write the proportion equation
197,313,220 : 272,273,799.90 = 117,912,529.36 : x - Step 2: Convert to fraction form
197,313,220/272,273,799.90 = 117,912,529.36/x - Step 3: Cross multiply
197,313,220x = 272,273,799.90 × 117,912,529.36 - Step 4: Simplify right side
197,313,220x = 32,104,492,424,667,512 - Step 5: Solve for x
x = 32,104,492,424,667,512/197,313,220 - Step 6: Final answer
x = 162,708,268.73
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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.