Finding the Fourth Proportional to 15,062,564.14, 20,785,901.64 and 8,536,796.70
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Solution
The fourth proportional to 15,062,564.14, 20,785,901.64 and 8,536,796.70 is: 11,780,531.85
Step by Step Solution
- Step 1: Write the proportion equation
15,062,564.14 : 20,785,901.64 = 8,536,796.70 : x - Step 2: Convert to fraction form
15,062,564.14/20,785,901.64 = 8,536,796.70/x - Step 3: Cross multiply
15,062,564.14x = 20,785,901.64 × 8,536,796.70 - Step 4: Simplify right side
15,062,564.14x = 177,445,016,526,876.56 - Step 5: Solve for x
x = 177,445,016,526,876.56/15,062,564.14 - Step 6: Final answer
x = 11,780,531.85
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1.5x scale
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.