Finding the Fourth Proportional to 213,285,726,415.96, 319,879,632,748.20 and 127,160,346,887.68
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Solution
The fourth proportional to 213,285,726,415.96, 319,879,632,748.20 and 127,160,346,887.68 is: 190,711,332,380.66
Step by Step Solution
- Step 1: Write the proportion equation
213,285,726,415.96 : 319,879,632,748.20 = 127,160,346,887.68 : x - Step 2: Convert to fraction form
213,285,726,415.96/319,879,632,748.20 = 127,160,346,887.68/x - Step 3: Cross multiply
213,285,726,415.96x = 319,879,632,748.20 × 127,160,346,887.68 - Step 4: Simplify right side
213,285,726,415.96x = 40,676,005,062,564,798,005,248 - Step 5: Solve for x
x = 40,676,005,062,564,798,005,248/213,285,726,415.96 - Step 6: Final answer
x = 190,711,332,380.66
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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.