Finding the Fourth Proportional to 15,765,793.91, 21,767,553.39 and 10,197,537.80
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Solution
The fourth proportional to 15,765,793.91, 21,767,553.39 and 10,197,537.80 is: 14,079,560.46
Step by Step Solution
- Step 1: Write the proportion equation
15,765,793.91 : 21,767,553.39 = 10,197,537.80 : x - Step 2: Convert to fraction form
15,765,793.91/21,767,553.39 = 10,197,537.80/x - Step 3: Cross multiply
15,765,793.91x = 21,767,553.39 × 10,197,537.80 - Step 4: Simplify right side
15,765,793.91x = 221,975,448,508,043.16 - Step 5: Solve for x
x = 221,975,448,508,043.16/15,765,793.91 - Step 6: Final answer
x = 14,079,560.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.