Finding the Fourth Proportional to 7,136,698.86, 9,848,791.26 and 4,039,221.99
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Solution
The fourth proportional to 7,136,698.86, 9,848,791.26 and 4,039,221.99 is: 5,574,209.45
Step by Step Solution
- Step 1: Write the proportion equation
7,136,698.86 : 9,848,791.26 = 4,039,221.99 : x - Step 2: Convert to fraction form
7,136,698.86/9,848,791.26 = 4,039,221.99/x - Step 3: Cross multiply
7,136,698.86x = 9,848,791.26 × 4,039,221.99 - Step 4: Simplify right side
7,136,698.86x = 39,781,454,232,311.81 - Step 5: Solve for x
x = 39,781,454,232,311.81/7,136,698.86 - Step 6: Final answer
x = 5,574,209.45
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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.