Finding the Fourth Proportional to 139,656,717.76, 192,732,249.36 and 77,777,056.24
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Solution
The fourth proportional to 139,656,717.76, 192,732,249.36 and 77,777,056.24 is: 107,335,667.33
Step by Step Solution
- Step 1: Write the proportion equation
139,656,717.76 : 192,732,249.36 = 77,777,056.24 : x - Step 2: Convert to fraction form
139,656,717.76/192,732,249.36 = 77,777,056.24/x - Step 3: Cross multiply
139,656,717.76x = 192,732,249.36 × 77,777,056.24 - Step 4: Simplify right side
139,656,717.76x = 14,990,146,997,734,424 - Step 5: Solve for x
x = 14,990,146,997,734,424/139,656,717.76 - Step 6: Final answer
x = 107,335,667.33
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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.