Finding the Fourth Proportional to 67,724,124.22, 93,457,701.76 and 39,848,639.95
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Solution
The fourth proportional to 67,724,124.22, 93,457,701.76 and 39,848,639.95 is: 54,990,187.78
Step by Step Solution
- Step 1: Write the proportion equation
67,724,124.22 : 93,457,701.76 = 39,848,639.95 : x - Step 2: Convert to fraction form
67,724,124.22/93,457,701.76 = 39,848,639.95/x - Step 3: Cross multiply
67,724,124.22x = 93,457,701.76 × 39,848,639.95 - Step 4: Simplify right side
67,724,124.22x = 3,724,162,307,988,722 - Step 5: Solve for x
x = 3,724,162,307,988,722/67,724,124.22 - Step 6: Final answer
x = 54,990,187.78
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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.