Finding the Fourth Proportional to 5,387,136.03, 7,434,405.69 and 2,939,905.08
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Solution
The fourth proportional to 5,387,136.03, 7,434,405.69 and 2,939,905.08 is: 4,057,155.22
Step by Step Solution
- Step 1: Write the proportion equation
5,387,136.03 : 7,434,405.69 = 2,939,905.08 : x - Step 2: Convert to fraction form
5,387,136.03/7,434,405.69 = 2,939,905.08/x - Step 3: Cross multiply
5,387,136.03x = 7,434,405.69 × 2,939,905.08 - Step 4: Simplify right side
5,387,136.03x = 21,856,447,054,811.91 - Step 5: Solve for x
x = 21,856,447,054,811.91/5,387,136.03 - Step 6: Final answer
x = 4,057,155.22
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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.