Finding the Fourth Proportional to 15,109,517.16, 20,850,526.98 and 8,233,852.68
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Solution
The fourth proportional to 15,109,517.16, 20,850,526.98 and 8,233,852.68 is: 11,362,386.08
Step by Step Solution
- Step 1: Write the proportion equation
15,109,517.16 : 20,850,526.98 = 8,233,852.68 : x - Step 2: Convert to fraction form
15,109,517.16/20,850,526.98 = 8,233,852.68/x - Step 3: Cross multiply
15,109,517.16x = 20,850,526.98 × 8,233,852.68 - Step 4: Simplify right side
15,109,517.16x = 171,680,167,453,685.31 - Step 5: Solve for x
x = 171,680,167,453,685.31/15,109,517.16 - Step 6: Final answer
x = 11,362,386.08
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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.