Finding the Fourth Proportional to 5,709,119.72, 7,878,767.82 and 3,130,794.42
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Solution
The fourth proportional to 5,709,119.72, 7,878,767.82 and 3,130,794.42 is: 4,320,596.44
Step by Step Solution
- Step 1: Write the proportion equation
5,709,119.72 : 7,878,767.82 = 3,130,794.42 : x - Step 2: Convert to fraction form
5,709,119.72/7,878,767.82 = 3,130,794.42/x - Step 3: Cross multiply
5,709,119.72x = 7,878,767.82 × 3,130,794.42 - Step 4: Simplify right side
5,709,119.72x = 24,666,802,327,331.57 - Step 5: Solve for x
x = 24,666,802,327,331.57/5,709,119.72 - Step 6: Final answer
x = 4,320,596.44
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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.