Finding the Fourth Proportional to 13,038,796.68, 17,992,638.99 and 7,237,121.87
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Solution
The fourth proportional to 13,038,796.68, 17,992,638.99 and 7,237,121.87 is: 9,986,728.40
Step by Step Solution
- Step 1: Write the proportion equation
13,038,796.68 : 17,992,638.99 = 7,237,121.87 : x - Step 2: Convert to fraction form
13,038,796.68/17,992,638.99 = 7,237,121.87/x - Step 3: Cross multiply
13,038,796.68x = 17,992,638.99 × 7,237,121.87 - Step 4: Simplify right side
13,038,796.68x = 130,214,921,043,580.52 - Step 5: Solve for x
x = 130,214,921,043,580.52/13,038,796.68 - Step 6: Final answer
x = 9,986,728.40
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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.