Finding the Fourth Proportional to 13,572,158.90, 18,722,059.36 and 8,601,471.47
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Solution
The fourth proportional to 13,572,158.90, 18,722,059.36 and 8,601,471.47 is: 11,865,264.82
Step by Step Solution
- Step 1: Write the proportion equation
13,572,158.90 : 18,722,059.36 = 8,601,471.47 : x - Step 2: Convert to fraction form
13,572,158.90/18,722,059.36 = 8,601,471.47/x - Step 3: Cross multiply
13,572,158.90x = 18,722,059.36 × 8,601,471.47 - Step 4: Simplify right side
13,572,158.90x = 161,037,259,469,987.94 - Step 5: Solve for x
x = 161,037,259,469,987.94/13,572,158.90 - Step 6: Final answer
x = 11,865,264.82
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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.