Finding the Fourth Proportional to 2,918,354.64, 4,378,918.20 and 2,021,177.04
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Solution
The fourth proportional to 2,918,354.64, 4,378,918.20 and 2,021,177.04 is: 3,032,725.63
Step by Step Solution
- Step 1: Write the proportion equation
2,918,354.64 : 4,378,918.20 = 2,021,177.04 : x - Step 2: Convert to fraction form
2,918,354.64/4,378,918.20 = 2,021,177.04/x - Step 3: Cross multiply
2,918,354.64x = 4,378,918.20 × 2,021,177.04 - Step 4: Simplify right side
2,918,354.64x = 8,850,568,925,878.13 - Step 5: Solve for x
x = 8,850,568,925,878.13/2,918,354.64 - Step 6: Final answer
x = 3,032,725.63
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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.