Finding the Fourth Proportional to 5,394,031.68, 7,443,990.28 and 3,102,194.46
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Solution
The fourth proportional to 5,394,031.68, 7,443,990.28 and 3,102,194.46 is: 4,281,158.65
Step by Step Solution
- Step 1: Write the proportion equation
5,394,031.68 : 7,443,990.28 = 3,102,194.46 : x - Step 2: Convert to fraction form
5,394,031.68/7,443,990.28 = 3,102,194.46/x - Step 3: Cross multiply
5,394,031.68x = 7,443,990.28 × 3,102,194.46 - Step 4: Simplify right side
5,394,031.68x = 23,092,705,406,909.85 - Step 5: Solve for x
x = 23,092,705,406,909.85/5,394,031.68 - Step 6: Final answer
x = 4,281,158.65
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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.