Finding the Fourth Proportional to 2,015,106.84, 2,780,635.68 and 1,143,664.38
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Solution
The fourth proportional to 2,015,106.84, 2,780,635.68 and 1,143,664.38 is: 1,578,136.66
Step by Step Solution
- Step 1: Write the proportion equation
2,015,106.84 : 2,780,635.68 = 1,143,664.38 : x - Step 2: Convert to fraction form
2,015,106.84/2,780,635.68 = 1,143,664.38/x - Step 3: Cross multiply
2,015,106.84x = 2,780,635.68 × 1,143,664.38 - Step 4: Simplify right side
2,015,106.84x = 3,180,113,980,973.08 - Step 5: Solve for x
x = 3,180,113,980,973.08/2,015,106.84 - Step 6: Final answer
x = 1,578,136.66
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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.