Finding the Fourth Proportional to 13,464,980.70, 18,581,821.11 and 7,353,589.02
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Solution
The fourth proportional to 13,464,980.70, 18,581,821.11 and 7,353,589.02 is: 10,148,033.53
Step by Step Solution
- Step 1: Write the proportion equation
13,464,980.70 : 18,581,821.11 = 7,353,589.02 : x - Step 2: Convert to fraction form
13,464,980.70/18,581,821.11 = 7,353,589.02/x - Step 3: Cross multiply
13,464,980.70x = 18,581,821.11 × 7,353,589.02 - Step 4: Simplify right side
13,464,980.70x = 136,643,075,686,100.20 - Step 5: Solve for x
x = 136,643,075,686,100.20/13,464,980.70 - Step 6: Final answer
x = 10,148,033.53
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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.