Finding the Fourth Proportional to 102,576,278.20, 141,552,657.12 and 57,313,392.88
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Solution
The fourth proportional to 102,576,278.20, 141,552,657.12 and 57,313,392.88 is: 79,091,025.66
Step by Step Solution
- Step 1: Write the proportion equation
102,576,278.20 : 141,552,657.12 = 57,313,392.88 : x - Step 2: Convert to fraction form
102,576,278.20/141,552,657.12 = 57,313,392.88/x - Step 3: Cross multiply
102,576,278.20x = 141,552,657.12 × 57,313,392.88 - Step 4: Simplify right side
102,576,278.20x = 8,112,863,050,726,490 - Step 5: Solve for x
x = 8,112,863,050,726,490/102,576,278.20 - Step 6: Final answer
x = 79,091,025.66
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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.