Finding the Fourth Proportional to 15,278,267.10, 21,084,449.67 and 8,403,190.14
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Solution
The fourth proportional to 15,278,267.10, 21,084,449.67 and 8,403,190.14 is: 11,596,644.99
Step by Step Solution
- Step 1: Write the proportion equation
15,278,267.10 : 21,084,449.67 = 8,403,190.14 : x - Step 2: Convert to fraction form
15,278,267.10/21,084,449.67 = 8,403,190.14/x - Step 3: Cross multiply
15,278,267.10x = 21,084,449.67 × 8,403,190.14 - Step 4: Simplify right side
15,278,267.10x = 177,176,639,574,270.28 - Step 5: Solve for x
x = 177,176,639,574,270.28/15,278,267.10 - Step 6: Final answer
x = 11,596,644.99
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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.