Finding the Fourth Proportional to 21,554,579.70, 32,331,869.55 and 13,901,829.30
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Solution
The fourth proportional to 21,554,579.70, 32,331,869.55 and 13,901,829.30 is: 20,852,743.95
Step by Step Solution
- Step 1: Write the proportion equation
21,554,579.70 : 32,331,869.55 = 13,901,829.30 : x - Step 2: Convert to fraction form
21,554,579.70/32,331,869.55 = 13,901,829.30/x - Step 3: Cross multiply
21,554,579.70x = 32,331,869.55 × 13,901,829.30 - Step 4: Simplify right side
21,554,579.70x = 449,472,131,433,967.88 - Step 5: Solve for x
x = 449,472,131,433,967.88/21,554,579.70 - Step 6: Final answer
x = 20,852,743.95
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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.