Finding the Fourth Proportional to 8,877,621.28, 13,281,394.56 and 6,840,431.32
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Solution
The fourth proportional to 8,877,621.28, 13,281,394.56 and 6,840,431.32 is: 10,233,649.81
Step by Step Solution
- Step 1: Write the proportion equation
8,877,621.28 : 13,281,394.56 = 6,840,431.32 : x - Step 2: Convert to fraction form
8,877,621.28/13,281,394.56 = 6,840,431.32/x - Step 3: Cross multiply
8,877,621.28x = 13,281,394.56 × 6,840,431.32 - Step 4: Simplify right side
8,877,621.28x = 90,850,467,321,501.62 - Step 5: Solve for x
x = 90,850,467,321,501.62/8,877,621.28 - Step 6: Final answer
x = 10,233,649.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.