Finding the Fourth Proportional to 5,153,226.38, 7,112,327.54 and 2,979,030.05
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Solution
The fourth proportional to 5,153,226.38, 7,112,327.54 and 2,979,030.05 is: 4,111,567.38
Step by Step Solution
- Step 1: Write the proportion equation
5,153,226.38 : 7,112,327.54 = 2,979,030.05 : x - Step 2: Convert to fraction form
5,153,226.38/7,112,327.54 = 2,979,030.05/x - Step 3: Cross multiply
5,153,226.38x = 7,112,327.54 × 2,979,030.05 - Step 4: Simplify right side
5,153,226.38x = 21,187,837,467,102.57 - Step 5: Solve for x
x = 21,187,837,467,102.57/5,153,226.38 - Step 6: Final answer
x = 4,111,567.38
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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.