Finding the Fourth Proportional to 81,009,624.02, 121,514,751.29 and 19,598,684.19
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Solution
The fourth proportional to 81,009,624.02, 121,514,751.29 and 19,598,684.19 is: 29,398,102.56
Step by Step Solution
- Step 1: Write the proportion equation
81,009,624.02 : 121,514,751.29 = 19,598,684.19 : x - Step 2: Convert to fraction form
81,009,624.02/121,514,751.29 = 19,598,684.19/x - Step 3: Cross multiply
81,009,624.02x = 121,514,751.29 × 19,598,684.19 - Step 4: Simplify right side
81,009,624.02x = 2,381,529,234,959,105.50 - Step 5: Solve for x
x = 2,381,529,234,959,105.50/81,009,624.02 - Step 6: Final answer
x = 29,398,102.56
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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.