Finding the Fourth Proportional to 5,169,655.89, 7,135,081.74 and 2,994,198.39
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Solution
The fourth proportional to 5,169,655.89, 7,135,081.74 and 2,994,198.39 is: 4,132,547.84
Step by Step Solution
- Step 1: Write the proportion equation
5,169,655.89 : 7,135,081.74 = 2,994,198.39 : x - Step 2: Convert to fraction form
5,169,655.89/7,135,081.74 = 2,994,198.39/x - Step 3: Cross multiply
5,169,655.89x = 7,135,081.74 × 2,994,198.39 - Step 4: Simplify right side
5,169,655.89x = 21,363,850,258,426.40 - Step 5: Solve for x
x = 21,363,850,258,426.40/5,169,655.89 - Step 6: Final answer
x = 4,132,547.84
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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.