Finding the Fourth Proportional to 20,771,117.05, 31,128,825.50 and 16,165,664.36
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Solution
The fourth proportional to 20,771,117.05, 31,128,825.50 and 16,165,664.36 is: 24,226,821.49
Step by Step Solution
- Step 1: Write the proportion equation
20,771,117.05 : 31,128,825.50 = 16,165,664.36 : x - Step 2: Convert to fraction form
20,771,117.05/31,128,825.50 = 16,165,664.36/x - Step 3: Cross multiply
20,771,117.05x = 31,128,825.50 × 16,165,664.36 - Step 4: Simplify right side
20,771,117.05x = 503,218,144,873,180.88 - Step 5: Solve for x
x = 503,218,144,873,180.88/20,771,117.05 - Step 6: Final answer
x = 24,226,821.49
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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.