Finding the Fourth Proportional to 6,112,029.36, 8,434,551.18 and 3,321,128.19
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Solution
The fourth proportional to 6,112,029.36, 8,434,551.18 and 3,321,128.19 is: 4,583,130.09
Step by Step Solution
- Step 1: Write the proportion equation
6,112,029.36 : 8,434,551.18 = 3,321,128.19 : x - Step 2: Convert to fraction form
6,112,029.36/8,434,551.18 = 3,321,128.19/x - Step 3: Cross multiply
6,112,029.36x = 8,434,551.18 × 3,321,128.19 - Step 4: Simplify right side
6,112,029.36x = 28,012,225,693,895.76 - Step 5: Solve for x
x = 28,012,225,693,895.76/6,112,029.36 - Step 6: Final answer
x = 4,583,130.09
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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.