Finding the Fourth Proportional to 5,612,089.20, 8,420,612.40 and 2,731,858.80
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Solution
The fourth proportional to 5,612,089.20, 8,420,612.40 and 2,731,858.80 is: 4,098,994.74
Step by Step Solution
- Step 1: Write the proportion equation
5,612,089.20 : 8,420,612.40 = 2,731,858.80 : x - Step 2: Convert to fraction form
5,612,089.20/8,420,612.40 = 2,731,858.80/x - Step 3: Cross multiply
5,612,089.20x = 8,420,612.40 × 2,731,858.80 - Step 4: Simplify right side
5,612,089.20x = 23,003,924,086,329.12 - Step 5: Solve for x
x = 23,003,924,086,329.12/5,612,089.20 - Step 6: Final answer
x = 4,098,994.74
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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.