Finding the Fourth Proportional to 13,424,101.68, 18,525,165.84 and 7,312,530.18
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Solution
The fourth proportional to 13,424,101.68, 18,525,165.84 and 7,312,530.18 is: 10,091,240.18
Step by Step Solution
- Step 1: Write the proportion equation
13,424,101.68 : 18,525,165.84 = 7,312,530.18 : x - Step 2: Convert to fraction form
13,424,101.68/18,525,165.84 = 7,312,530.18/x - Step 3: Cross multiply
13,424,101.68x = 18,525,165.84 × 7,312,530.18 - Step 4: Simplify right side
13,424,101.68x = 135,465,834,294,505.05 - Step 5: Solve for x
x = 135,465,834,294,505.05/13,424,101.68 - Step 6: Final answer
x = 10,091,240.18
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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.