Finding the Fourth Proportional to 21,062,035.80, 31,536,283.50 and 13,757,406.84
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Solution
The fourth proportional to 21,062,035.80, 31,536,283.50 and 13,757,406.84 is: 20,599,028.81
Step by Step Solution
- Step 1: Write the proportion equation
21,062,035.80 : 31,536,283.50 = 13,757,406.84 : x - Step 2: Convert to fraction form
21,062,035.80/31,536,283.50 = 13,757,406.84/x - Step 3: Cross multiply
21,062,035.80x = 31,536,283.50 × 13,757,406.84 - Step 4: Simplify right side
21,062,035.80x = 433,857,482,331,079.12 - Step 5: Solve for x
x = 433,857,482,331,079.12/21,062,035.80 - Step 6: Final answer
x = 20,599,028.81
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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.