Finding the Fourth Proportional to 5,280,406.33, 7,286,128.37 and 3,075,631.99
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Solution
The fourth proportional to 5,280,406.33, 7,286,128.37 and 3,075,631.99 is: 4,243,887.34
Step by Step Solution
- Step 1: Write the proportion equation
5,280,406.33 : 7,286,128.37 = 3,075,631.99 : x - Step 2: Convert to fraction form
5,280,406.33/7,286,128.37 = 3,075,631.99/x - Step 3: Cross multiply
5,280,406.33x = 7,286,128.37 × 3,075,631.99 - Step 4: Simplify right side
5,280,406.33x = 22,409,449,540,165.74 - Step 5: Solve for x
x = 22,409,449,540,165.74/5,280,406.33 - Step 6: Final answer
x = 4,243,887.34
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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.