Finding the Fourth Proportional to 134,840,995.82, 186,048,213.63 and 81,916,645.58
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Solution
The fourth proportional to 134,840,995.82, 186,048,213.63 and 81,916,645.58 is: 113,025,311.66
Step by Step Solution
- Step 1: Write the proportion equation
134,840,995.82 : 186,048,213.63 = 81,916,645.58 : x - Step 2: Convert to fraction form
134,840,995.82/186,048,213.63 = 81,916,645.58/x - Step 3: Cross multiply
134,840,995.82x = 186,048,213.63 × 81,916,645.58 - Step 4: Simplify right side
134,840,995.82x = 15,240,445,576,720,834 - Step 5: Solve for x
x = 15,240,445,576,720,834/134,840,995.82 - Step 6: Final answer
x = 113,025,311.66
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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.