Finding the Fourth Proportional to 11,542,739.76, 15,928,862.02 and 6,386,138.21
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Solution
The fourth proportional to 11,542,739.76, 15,928,862.02 and 6,386,138.21 is: 8,812,804.98
Step by Step Solution
- Step 1: Write the proportion equation
11,542,739.76 : 15,928,862.02 = 6,386,138.21 : x - Step 2: Convert to fraction form
11,542,739.76/15,928,862.02 = 6,386,138.21/x - Step 3: Cross multiply
11,542,739.76x = 15,928,862.02 × 6,386,138.21 - Step 4: Simplify right side
11,542,739.76x = 101,723,914,411,596.59 - Step 5: Solve for x
x = 101,723,914,411,596.59/11,542,739.76 - Step 6: Final answer
x = 8,812,804.98
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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.