Finding the Fourth Proportional to 81,649,359.20, 122,474,038.80 and 27,796,671.20
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Solution
The fourth proportional to 81,649,359.20, 122,474,038.80 and 27,796,671.20 is: 41,695,006.80
Step by Step Solution
- Step 1: Write the proportion equation
81,649,359.20 : 122,474,038.80 = 27,796,671.20 : x - Step 2: Convert to fraction form
81,649,359.20/122,474,038.80 = 27,796,671.20/x - Step 3: Cross multiply
81,649,359.20x = 122,474,038.80 × 27,796,671.20 - Step 4: Simplify right side
81,649,359.20x = 3,404,370,587,059,642.50 - Step 5: Solve for x
x = 3,404,370,587,059,642.50/81,649,359.20 - Step 6: Final answer
x = 41,695,006.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.