Finding the Fourth Proportional to 21,554,430.70, 32,331,646.05 and 13,901,680.30
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Solution
The fourth proportional to 21,554,430.70, 32,331,646.05 and 13,901,680.30 is: 20,852,520.45
Step by Step Solution
- Step 1: Write the proportion equation
21,554,430.70 : 32,331,646.05 = 13,901,680.30 : x - Step 2: Convert to fraction form
21,554,430.70/32,331,646.05 = 13,901,680.30/x - Step 3: Cross multiply
21,554,430.70x = 32,331,646.05 × 13,901,680.30 - Step 4: Simplify right side
21,554,430.70x = 449,464,206,959,857.88 - Step 5: Solve for x
x = 449,464,206,959,857.88/21,554,430.70 - Step 6: Final answer
x = 20,852,520.45
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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.