Finding the Fourth Proportional to 15,170,185.68, 20,940,549.06 and 9,943,530.54
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Solution
The fourth proportional to 15,170,185.68, 20,940,549.06 and 9,943,530.54 is: 13,725,803.59
Step by Step Solution
- Step 1: Write the proportion equation
15,170,185.68 : 20,940,549.06 = 9,943,530.54 : x - Step 2: Convert to fraction form
15,170,185.68/20,940,549.06 = 9,943,530.54/x - Step 3: Cross multiply
15,170,185.68x = 20,940,549.06 × 9,943,530.54 - Step 4: Simplify right side
15,170,185.68x = 208,222,989,102,478.25 - Step 5: Solve for x
x = 208,222,989,102,478.25/15,170,185.68 - Step 6: Final answer
x = 13,725,803.59
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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.