Finding the Fourth Proportional to 7,842,369.20, 11,763,553.80 and 2,793,844.40
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Solution
The fourth proportional to 7,842,369.20, 11,763,553.80 and 2,793,844.40 is: 4,190,766.60
Step by Step Solution
- Step 1: Write the proportion equation
7,842,369.20 : 11,763,553.80 = 2,793,844.40 : x - Step 2: Convert to fraction form
7,842,369.20/11,763,553.80 = 2,793,844.40/x - Step 3: Cross multiply
7,842,369.20x = 11,763,553.80 × 2,793,844.40 - Step 4: Simplify right side
7,842,369.20x = 32,865,538,908,228.72 - Step 5: Solve for x
x = 32,865,538,908,228.72/7,842,369.20 - Step 6: Final answer
x = 4,190,766.60
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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.