Finding the Fourth Proportional to 3,130,991.68, 4,320,838.56 and 1,754,438.08
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Solution
The fourth proportional to 3,130,991.68, 4,320,838.56 and 1,754,438.08 is: 2,421,163.80
Step by Step Solution
- Step 1: Write the proportion equation
3,130,991.68 : 4,320,838.56 = 1,754,438.08 : x - Step 2: Convert to fraction form
3,130,991.68/4,320,838.56 = 1,754,438.08/x - Step 3: Cross multiply
3,130,991.68x = 4,320,838.56 × 1,754,438.08 - Step 4: Simplify right side
3,130,991.68x = 7,580,643,707,196.36 - Step 5: Solve for x
x = 7,580,643,707,196.36/3,130,991.68 - Step 6: Final answer
x = 2,421,163.80
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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.