Finding the Fourth Proportional to 4,256,243.91, 6,384,187.08 and 1,980,985.68
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Solution
The fourth proportional to 4,256,243.91, 6,384,187.08 and 1,980,985.68 is: 2,971,395.31
Step by Step Solution
- Step 1: Write the proportion equation
4,256,243.91 : 6,384,187.08 = 1,980,985.68 : x - Step 2: Convert to fraction form
4,256,243.91/6,384,187.08 = 1,980,985.68/x - Step 3: Cross multiply
4,256,243.91x = 6,384,187.08 × 1,980,985.68 - Step 4: Simplify right side
4,256,243.91x = 12,646,983,183,921.01 - Step 5: Solve for x
x = 12,646,983,183,921.01/4,256,243.91 - Step 6: Final answer
x = 2,971,395.31
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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.