Finding the Fourth Proportional to 133,958,493.36, 184,809,963.96 and 77,405,871.24
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Solution
The fourth proportional to 133,958,493.36, 184,809,963.96 and 77,405,871.24 is: 106,789,617.55
Step by Step Solution
- Step 1: Write the proportion equation
133,958,493.36 : 184,809,963.96 = 77,405,871.24 : x - Step 2: Convert to fraction form
133,958,493.36/184,809,963.96 = 77,405,871.24/x - Step 3: Cross multiply
133,958,493.36x = 184,809,963.96 × 77,405,871.24 - Step 4: Simplify right side
133,958,493.36x = 14,305,376,274,156,800 - Step 5: Solve for x
x = 14,305,376,274,156,800/133,958,493.36 - Step 6: Final answer
x = 106,789,617.55
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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.