Finding the Fourth Proportional to 49,745,893.81, 68,648,635.64 and 27,720,321.57
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Solution
The fourth proportional to 49,745,893.81, 68,648,635.64 and 27,720,321.57 is: 38,253,654.91
Step by Step Solution
- Step 1: Write the proportion equation
49,745,893.81 : 68,648,635.64 = 27,720,321.57 : x - Step 2: Convert to fraction form
49,745,893.81/68,648,635.64 = 27,720,321.57/x - Step 3: Cross multiply
49,745,893.81x = 68,648,635.64 × 27,720,321.57 - Step 4: Simplify right side
49,745,893.81x = 1,902,962,254,939,319.75 - Step 5: Solve for x
x = 1,902,962,254,939,319.75/49,745,893.81 - Step 6: Final answer
x = 38,253,654.91
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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.