Finding the Fourth Proportional to 15,269,097.68, 21,071,422.92 and 8,394,021.84
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Solution
The fourth proportional to 15,269,097.68, 21,071,422.92 and 8,394,021.84 is: 11,583,787.59
Step by Step Solution
- Step 1: Write the proportion equation
15,269,097.68 : 21,071,422.92 = 8,394,021.84 : x - Step 2: Convert to fraction form
15,269,097.68/21,071,422.92 = 8,394,021.84/x - Step 3: Cross multiply
15,269,097.68x = 21,071,422.92 × 8,394,021.84 - Step 4: Simplify right side
15,269,097.68x = 176,873,984,190,356.59 - Step 5: Solve for x
x = 176,873,984,190,356.59/15,269,097.68 - Step 6: Final answer
x = 11,583,787.59
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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.