Finding the Fourth Proportional to 10,693,987.20, 14,753,824.92 and 7,024,879.44
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Solution
The fourth proportional to 10,693,987.20, 14,753,824.92 and 7,024,879.44 is: 9,691,786.55
Step by Step Solution
- Step 1: Write the proportion equation
10,693,987.20 : 14,753,824.92 = 7,024,879.44 : x - Step 2: Convert to fraction form
10,693,987.20/14,753,824.92 = 7,024,879.44/x - Step 3: Cross multiply
10,693,987.20x = 14,753,824.92 × 7,024,879.44 - Step 4: Simplify right side
10,693,987.20x = 103,643,841,341,867.66 - Step 5: Solve for x
x = 103,643,841,341,867.66/10,693,987.20 - Step 6: Final answer
x = 9,691,786.55
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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.