Finding the Fourth Proportional to 7,122,451.13, 9,828,991.19 and 3,859,263.28
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Solution
The fourth proportional to 7,122,451.13, 9,828,991.19 and 3,859,263.28 is: 5,325,788.00
Step by Step Solution
- Step 1: Write the proportion equation
7,122,451.13 : 9,828,991.19 = 3,859,263.28 : x - Step 2: Convert to fraction form
7,122,451.13/9,828,991.19 = 3,859,263.28/x - Step 3: Cross multiply
7,122,451.13x = 9,828,991.19 × 3,859,263.28 - Step 4: Simplify right side
7,122,451.13x = 37,932,664,764,086.19 - Step 5: Solve for x
x = 37,932,664,764,086.19/7,122,451.13 - Step 6: Final answer
x = 5,325,788.00
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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.