Finding the Fourth Proportional to 30,614,644.97, 42,248,212.37 and 16,863,609.09
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Solution
The fourth proportional to 30,614,644.97, 42,248,212.37 and 16,863,609.09 is: 23,271,781.82
Step by Step Solution
- Step 1: Write the proportion equation
30,614,644.97 : 42,248,212.37 = 16,863,609.09 : x - Step 2: Convert to fraction form
30,614,644.97/42,248,212.37 = 16,863,609.09/x - Step 3: Cross multiply
30,614,644.97x = 42,248,212.37 × 16,863,609.09 - Step 4: Simplify right side
30,614,644.97x = 712,457,338,158,982.38 - Step 5: Solve for x
x = 712,457,338,158,982.38/30,614,644.97 - Step 6: Final answer
x = 23,271,781.82
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1.5x scale
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.