Finding the Fourth Proportional to 5,170,376.86, 7,134,889.91 and 2,963,657.68
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Solution
The fourth proportional to 5,170,376.86, 7,134,889.91 and 2,963,657.68 is: 4,089,715.68
Step by Step Solution
- Step 1: Write the proportion equation
5,170,376.86 : 7,134,889.91 = 2,963,657.68 : x - Step 2: Convert to fraction form
5,170,376.86/7,134,889.91 = 2,963,657.68/x - Step 3: Cross multiply
5,170,376.86x = 7,134,889.91 × 2,963,657.68 - Step 4: Simplify right side
5,170,376.86x = 21,145,371,302,972.38 - Step 5: Solve for x
x = 21,145,371,302,972.38/5,170,376.86 - Step 6: Final answer
x = 4,089,715.68
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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.