Finding the Fourth Proportional to 2,128,251.06, 2,936,556.18 and 1,354,189.14
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Solution
The fourth proportional to 2,128,251.06, 2,936,556.18 and 1,354,189.14 is: 1,868,507.23
Step by Step Solution
- Step 1: Write the proportion equation
2,128,251.06 : 2,936,556.18 = 1,354,189.14 : x - Step 2: Convert to fraction form
2,128,251.06/2,936,556.18 = 1,354,189.14/x - Step 3: Cross multiply
2,128,251.06x = 2,936,556.18 × 1,354,189.14 - Step 4: Simplify right side
2,128,251.06x = 3,976,652,487,955.89 - Step 5: Solve for x
x = 3,976,652,487,955.89/2,128,251.06 - Step 6: Final answer
x = 1,868,507.23
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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.