Finding the Fourth Proportional to 8,612,129.44, 12,918,129.36 and 2,221,838.56
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Solution
The fourth proportional to 8,612,129.44, 12,918,129.36 and 2,221,838.56 is: 3,332,741.12
Step by Step Solution
- Step 1: Write the proportion equation
8,612,129.44 : 12,918,129.36 = 2,221,838.56 : x - Step 2: Convert to fraction form
8,612,129.44/12,918,129.36 = 2,221,838.56/x - Step 3: Cross multiply
8,612,129.44x = 12,918,129.36 × 2,221,838.56 - Step 4: Simplify right side
8,612,129.44x = 28,701,997,935,116.12 - Step 5: Solve for x
x = 28,701,997,935,116.12/8,612,129.44 - Step 6: Final answer
x = 3,332,741.12
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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.