Finding the Fourth Proportional to 139,923,884.86, 193,095,631.84 and 77,199,979.66
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Solution
The fourth proportional to 139,923,884.86, 193,095,631.84 and 77,199,979.66 is: 106,536,341.99
Step by Step Solution
- Step 1: Write the proportion equation
139,923,884.86 : 193,095,631.84 = 77,199,979.66 : x - Step 2: Convert to fraction form
139,923,884.86/193,095,631.84 = 77,199,979.66/x - Step 3: Cross multiply
139,923,884.86x = 193,095,631.84 × 77,199,979.66 - Step 4: Simplify right side
139,923,884.86x = 14,906,978,850,482,848 - Step 5: Solve for x
x = 14,906,978,850,482,848/139,923,884.86 - Step 6: Final answer
x = 106,536,341.99
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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.