Finding the Fourth Proportional to 18,917,261.44, 28,311,532.72 and 11,626,877.18
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Solution
The fourth proportional to 18,917,261.44, 28,311,532.72 and 11,626,877.18 is: 17,400,759.34
Step by Step Solution
- Step 1: Write the proportion equation
18,917,261.44 : 28,311,532.72 = 11,626,877.18 : x - Step 2: Convert to fraction form
18,917,261.44/28,311,532.72 = 11,626,877.18/x - Step 3: Cross multiply
18,917,261.44x = 28,311,532.72 × 11,626,877.18 - Step 4: Simplify right side
18,917,261.44x = 329,174,713,712,991.31 - Step 5: Solve for x
x = 329,174,713,712,991.31/18,917,261.44 - Step 6: Final answer
x = 17,400,759.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.