Finding the Fourth Proportional to 29,878,830.91, 41,234,544.10 and 18,278,617.95
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Solution
The fourth proportional to 29,878,830.91, 41,234,544.10 and 18,278,617.95 is: 25,225,567.90
Step by Step Solution
- Step 1: Write the proportion equation
29,878,830.91 : 41,234,544.10 = 18,278,617.95 : x - Step 2: Convert to fraction form
29,878,830.91/41,234,544.10 = 18,278,617.95/x - Step 3: Cross multiply
29,878,830.91x = 41,234,544.10 × 18,278,617.95 - Step 4: Simplify right side
29,878,830.91x = 753,710,477,866,339.38 - Step 5: Solve for x
x = 753,710,477,866,339.38/29,878,830.91 - Step 6: Final answer
x = 25,225,567.90
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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.