Finding the Fourth Proportional to 2,128,055.94, 3,192,050.05 and 990,181.71
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Solution
The fourth proportional to 2,128,055.94, 3,192,050.05 and 990,181.71 is: 1,485,256.81
Step by Step Solution
- Step 1: Write the proportion equation
2,128,055.94 : 3,192,050.05 = 990,181.71 : x - Step 2: Convert to fraction form
2,128,055.94/3,192,050.05 = 990,181.71/x - Step 3: Cross multiply
2,128,055.94x = 3,192,050.05 × 990,181.71 - Step 4: Simplify right side
2,128,055.94x = 3,160,709,574,439.13 - Step 5: Solve for x
x = 3,160,709,574,439.13/2,128,055.94 - Step 6: Final answer
x = 1,485,256.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.