Finding the Fourth Proportional to 2,165,749.01, 2,987,426.09 and 1,391,119.08
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Solution
The fourth proportional to 2,165,749.01, 2,987,426.09 and 1,391,119.08 is: 1,918,904.46
Step by Step Solution
- Step 1: Write the proportion equation
2,165,749.01 : 2,987,426.09 = 1,391,119.08 : x - Step 2: Convert to fraction form
2,165,749.01/2,987,426.09 = 1,391,119.08/x - Step 3: Cross multiply
2,165,749.01x = 2,987,426.09 × 1,391,119.08 - Step 4: Simplify right side
2,165,749.01x = 4,155,865,426,933.20 - Step 5: Solve for x
x = 4,155,865,426,933.20/2,165,749.01 - Step 6: Final answer
x = 1,918,904.46
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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.