Finding the Fourth Proportional to 18,202,758.74, 25,119,637.24 and 9,942,817.86
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Solution
The fourth proportional to 18,202,758.74, 25,119,637.24 and 9,942,817.86 is: 13,720,995.89
Step by Step Solution
- Step 1: Write the proportion equation
18,202,758.74 : 25,119,637.24 = 9,942,817.86 : x - Step 2: Convert to fraction form
18,202,758.74/25,119,637.24 = 9,942,817.86/x - Step 3: Cross multiply
18,202,758.74x = 25,119,637.24 × 9,942,817.86 - Step 4: Simplify right side
18,202,758.74x = 249,759,977,786,593.06 - Step 5: Solve for x
x = 249,759,977,786,593.06/18,202,758.74 - Step 6: Final answer
x = 13,720,995.89
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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.