Finding the Fourth Proportional to 27,916,642.80, 41,876,276.40 and 8,748,025.20
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Solution
The fourth proportional to 27,916,642.80, 41,876,276.40 and 8,748,025.20 is: 13,122,448.99
Step by Step Solution
- Step 1: Write the proportion equation
27,916,642.80 : 41,876,276.40 = 8,748,025.20 : x - Step 2: Convert to fraction form
27,916,642.80/41,876,276.40 = 8,748,025.20/x - Step 3: Cross multiply
27,916,642.80x = 41,876,276.40 × 8,748,025.20 - Step 4: Simplify right side
27,916,642.80x = 366,334,721,229,365.25 - Step 5: Solve for x
x = 366,334,721,229,365.25/27,916,642.80 - Step 6: Final answer
x = 13,122,448.99
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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.