Finding the Fourth Proportional to 87,776,438.46, 121,131,482.86 and 48,620,737.49
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Solution
The fourth proportional to 87,776,438.46, 121,131,482.86 and 48,620,737.49 is: 67,096,616.51
Step by Step Solution
- Step 1: Write the proportion equation
87,776,438.46 : 121,131,482.86 = 48,620,737.49 : x - Step 2: Convert to fraction form
87,776,438.46/121,131,482.86 = 48,620,737.49/x - Step 3: Cross multiply
87,776,438.46x = 121,131,482.86 × 48,620,737.49 - Step 4: Simplify right side
87,776,438.46x = 5,889,502,029,365,613 - Step 5: Solve for x
x = 5,889,502,029,365,613/87,776,438.46 - Step 6: Final answer
x = 67,096,616.51
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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.