Finding the Fourth Proportional to 15,242,199.21, 21,034,257.95 and 8,272,879.26
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Solution
The fourth proportional to 15,242,199.21, 21,034,257.95 and 8,272,879.26 is: 11,416,585.88
Step by Step Solution
- Step 1: Write the proportion equation
15,242,199.21 : 21,034,257.95 = 8,272,879.26 : x - Step 2: Convert to fraction form
15,242,199.21/21,034,257.95 = 8,272,879.26/x - Step 3: Cross multiply
15,242,199.21x = 21,034,257.95 × 8,272,879.26 - Step 4: Simplify right side
15,242,199.21x = 174,013,876,344,045.09 - Step 5: Solve for x
x = 174,013,876,344,045.09/15,242,199.21 - Step 6: Final answer
x = 11,416,585.88
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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.