Finding the Fourth Proportional to 2,221,431.80, 3,064,662.99 and 1,350,126.09
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Solution
The fourth proportional to 2,221,431.80, 3,064,662.99 and 1,350,126.09 is: 1,862,619.18
Step by Step Solution
- Step 1: Write the proportion equation
2,221,431.80 : 3,064,662.99 = 1,350,126.09 : x - Step 2: Convert to fraction form
2,221,431.80/3,064,662.99 = 1,350,126.09/x - Step 3: Cross multiply
2,221,431.80x = 3,064,662.99 × 1,350,126.09 - Step 4: Simplify right side
2,221,431.80x = 4,137,681,459,856.41 - Step 5: Solve for x
x = 4,137,681,459,856.41/2,221,431.80 - Step 6: Final answer
x = 1,862,619.18
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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.