Finding the Fourth Proportional to 26,378,411.68, 39,571,431.27 and 9,979,249.69
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Solution
The fourth proportional to 26,378,411.68, 39,571,431.27 and 9,979,249.69 is: 14,970,317.32
Step by Step Solution
- Step 1: Write the proportion equation
26,378,411.68 : 39,571,431.27 = 9,979,249.69 : x - Step 2: Convert to fraction form
26,378,411.68/39,571,431.27 = 9,979,249.69/x - Step 3: Cross multiply
26,378,411.68x = 39,571,431.27 × 9,979,249.69 - Step 4: Simplify right side
26,378,411.68x = 394,893,193,234,003.81 - Step 5: Solve for x
x = 394,893,193,234,003.81/26,378,411.68 - Step 6: Final answer
x = 14,970,317.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.