Finding the Fourth Proportional to 138,741,438.24, 191,447,737.53 and 76,846,276.44
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Solution
The fourth proportional to 138,741,438.24, 191,447,737.53 and 76,846,276.44 is: 106,039,305.55
Step by Step Solution
- Step 1: Write the proportion equation
138,741,438.24 : 191,447,737.53 = 76,846,276.44 : x - Step 2: Convert to fraction form
138,741,438.24/191,447,737.53 = 76,846,276.44/x - Step 3: Cross multiply
138,741,438.24x = 191,447,737.53 × 76,846,276.44 - Step 4: Simplify right side
138,741,438.24x = 14,712,045,762,042,942 - Step 5: Solve for x
x = 14,712,045,762,042,942/138,741,438.24 - Step 6: Final answer
x = 106,039,305.55
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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.