Finding the Fourth Proportional to 7,444,892.80, 11,167,339.20 and 2,657,987.20
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Solution
The fourth proportional to 7,444,892.80, 11,167,339.20 and 2,657,987.20 is: 3,986,980.80
Step by Step Solution
- Step 1: Write the proportion equation
7,444,892.80 : 11,167,339.20 = 2,657,987.20 : x - Step 2: Convert to fraction form
7,444,892.80/11,167,339.20 = 2,657,987.20/x - Step 3: Cross multiply
7,444,892.80x = 11,167,339.20 × 2,657,987.20 - Step 4: Simplify right side
7,444,892.80x = 29,682,644,651,658.24 - Step 5: Solve for x
x = 29,682,644,651,658.24/7,444,892.80 - Step 6: Final answer
x = 3,986,980.80
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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.