Finding the Fourth Proportional to 3,986,437.78, 5,501,207.40 and 2,175,614.74
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Solution
The fourth proportional to 3,986,437.78, 5,501,207.40 and 2,175,614.74 is: 3,002,306.46
Step by Step Solution
- Step 1: Write the proportion equation
3,986,437.78 : 5,501,207.40 = 2,175,614.74 : x - Step 2: Convert to fraction form
3,986,437.78/5,501,207.40 = 2,175,614.74/x - Step 3: Cross multiply
3,986,437.78x = 5,501,207.40 × 2,175,614.74 - Step 4: Simplify right side
3,986,437.78x = 11,968,507,907,237.08 - Step 5: Solve for x
x = 11,968,507,907,237.08/3,986,437.78 - Step 6: Final answer
x = 3,002,306.46
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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.