Finding the Fourth Proportional to 2,021,023.99, 2,788,350.69 and 1,440,338.55
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Solution
The fourth proportional to 2,021,023.99, 2,788,350.69 and 1,440,338.55 is: 1,987,195.11
Step by Step Solution
- Step 1: Write the proportion equation
2,021,023.99 : 2,788,350.69 = 1,440,338.55 : x - Step 2: Convert to fraction form
2,021,023.99/2,788,350.69 = 1,440,338.55/x - Step 3: Cross multiply
2,021,023.99x = 2,788,350.69 × 1,440,338.55 - Step 4: Simplify right side
2,021,023.99x = 4,016,168,989,726.10 - Step 5: Solve for x
x = 4,016,168,989,726.10/2,021,023.99 - Step 6: Final answer
x = 1,987,195.11
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1.5x scale
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.