Finding the Fourth Proportional to 127,630,893.68, 176,128,241.64 and 78,067,626.56
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Solution
The fourth proportional to 127,630,893.68, 176,128,241.64 and 78,067,626.56 is: 107,731,861.77
Step by Step Solution
- Step 1: Write the proportion equation
127,630,893.68 : 176,128,241.64 = 78,067,626.56 : x - Step 2: Convert to fraction form
127,630,893.68/176,128,241.64 = 78,067,626.56/x - Step 3: Cross multiply
127,630,893.68x = 176,128,241.64 × 78,067,626.56 - Step 4: Simplify right side
127,630,893.68x = 13,749,913,795,020,962 - Step 5: Solve for x
x = 13,749,913,795,020,962/127,630,893.68 - Step 6: Final answer
x = 107,731,861.77
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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.