Finding the Fourth Proportional to 29,993,879.68, 41,391,490.80 and 16,242,801.28
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Solution
The fourth proportional to 29,993,879.68, 41,391,490.80 and 16,242,801.28 is: 22,415,031.56
Step by Step Solution
- Step 1: Write the proportion equation
29,993,879.68 : 41,391,490.80 = 16,242,801.28 : x - Step 2: Convert to fraction form
29,993,879.68/41,391,490.80 = 16,242,801.28/x - Step 3: Cross multiply
29,993,879.68x = 41,391,490.80 × 16,242,801.28 - Step 4: Simplify right side
29,993,879.68x = 672,313,759,747,348.12 - Step 5: Solve for x
x = 672,313,759,747,348.12/29,993,879.68 - Step 6: Final answer
x = 22,415,031.56
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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.