Finding the Fourth Proportional to 15,308,494.08, 21,125,623.68 and 8,432,816.64
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Solution
The fourth proportional to 15,308,494.08, 21,125,623.68 and 8,432,816.64 is: 11,637,232.90
Step by Step Solution
- Step 1: Write the proportion equation
15,308,494.08 : 21,125,623.68 = 8,432,816.64 : x - Step 2: Convert to fraction form
15,308,494.08/21,125,623.68 = 8,432,816.64/x - Step 3: Cross multiply
15,308,494.08x = 21,125,623.68 × 8,432,816.64 - Step 4: Simplify right side
15,308,494.08x = 178,148,510,899,082.03 - Step 5: Solve for x
x = 178,148,510,899,082.03/15,308,494.08 - Step 6: Final answer
x = 11,637,232.90
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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.