Finding the Fourth Proportional to 9,878,257.47, 14,798,213.74 and 7,279,843.18
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Solution
The fourth proportional to 9,878,257.47, 14,798,213.74 and 7,279,843.18 is: 10,905,635.50
Step by Step Solution
- Step 1: Write the proportion equation
9,878,257.47 : 14,798,213.74 = 7,279,843.18 : x - Step 2: Convert to fraction form
9,878,257.47/14,798,213.74 = 7,279,843.18/x - Step 3: Cross multiply
9,878,257.47x = 14,798,213.74 × 7,279,843.18 - Step 4: Simplify right side
9,878,257.47x = 107,728,675,371,321.30 - Step 5: Solve for x
x = 107,728,675,371,321.30/9,878,257.47 - Step 6: Final answer
x = 10,905,635.50
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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.