Finding the Fourth Proportional to 8,129,557.44, 11,217,980.64 and 4,692,905.64
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Solution
The fourth proportional to 8,129,557.44, 11,217,980.64 and 4,692,905.64 is: 6,475,742.99
Step by Step Solution
- Step 1: Write the proportion equation
8,129,557.44 : 11,217,980.64 = 4,692,905.64 : x - Step 2: Convert to fraction form
8,129,557.44/11,217,980.64 = 4,692,905.64/x - Step 3: Cross multiply
8,129,557.44x = 11,217,980.64 × 4,692,905.64 - Step 4: Simplify right side
8,129,557.44x = 52,644,924,614,866.81 - Step 5: Solve for x
x = 52,644,924,614,866.81/8,129,557.44 - Step 6: Final answer
x = 6,475,742.99
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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.