Finding the Fourth Proportional to 3,918,994.14, 5,408,027.88 and 2,176,776.48
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Solution
The fourth proportional to 3,918,994.14, 5,408,027.88 and 2,176,776.48 is: 3,003,849.32
Step by Step Solution
- Step 1: Write the proportion equation
3,918,994.14 : 5,408,027.88 = 2,176,776.48 : x - Step 2: Convert to fraction form
3,918,994.14/5,408,027.88 = 2,176,776.48/x - Step 3: Cross multiply
3,918,994.14x = 5,408,027.88 × 2,176,776.48 - Step 4: Simplify right side
3,918,994.14x = 11,772,067,904,485.46 - Step 5: Solve for x
x = 11,772,067,904,485.46/3,918,994.14 - Step 6: Final answer
x = 3,003,849.32
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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.