Finding the Fourth Proportional to 5,171,829.40, 7,137,124.52 and 2,997,633.68
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Solution
The fourth proportional to 5,171,829.40, 7,137,124.52 and 2,997,633.68 is: 4,136,734.44
Step by Step Solution
- Step 1: Write the proportion equation
5,171,829.40 : 7,137,124.52 = 2,997,633.68 : x - Step 2: Convert to fraction form
5,171,829.40/7,137,124.52 = 2,997,633.68/x - Step 3: Cross multiply
5,171,829.40x = 7,137,124.52 × 2,997,633.68 - Step 4: Simplify right side
5,171,829.40x = 21,394,484,788,832.04 - Step 5: Solve for x
x = 21,394,484,788,832.04/5,171,829.40 - Step 6: Final answer
x = 4,136,734.44
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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.