Finding the Fourth Proportional to 67,724,121.34, 93,457,697.80 and 39,848,637.07
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Solution
The fourth proportional to 67,724,121.34, 93,457,697.80 and 39,848,637.07 is: 54,990,183.81
Step by Step Solution
- Step 1: Write the proportion equation
67,724,121.34 : 93,457,697.80 = 39,848,637.07 : x - Step 2: Convert to fraction form
67,724,121.34/93,457,697.80 = 39,848,637.07/x - Step 3: Cross multiply
67,724,121.34x = 93,457,697.80 × 39,848,637.07 - Step 4: Simplify right side
67,724,121.34x = 3,724,161,880,920,518 - Step 5: Solve for x
x = 3,724,161,880,920,518/67,724,121.34 - Step 6: Final answer
x = 54,990,183.81
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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.