Finding the Fourth Proportional to 6,644,449.80, 9,971,340.30 and 2,860,648.20
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Solution
The fourth proportional to 6,644,449.80, 9,971,340.30 and 2,860,648.20 is: 4,292,980.99
Step by Step Solution
- Step 1: Write the proportion equation
6,644,449.80 : 9,971,340.30 = 2,860,648.20 : x - Step 2: Convert to fraction form
6,644,449.80/9,971,340.30 = 2,860,648.20/x - Step 3: Cross multiply
6,644,449.80x = 9,971,340.30 × 2,860,648.20 - Step 4: Simplify right side
6,644,449.80x = 28,524,496,680,782.46 - Step 5: Solve for x
x = 28,524,496,680,782.46/6,644,449.80 - Step 6: Final answer
x = 4,292,980.99
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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.